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CloudPro

26 Articles
Shreyans from Packt
03 Mar 2025
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NFTables mode for kube-proxy | Kubernetes

Shreyans from Packt
03 Mar 2025
Announcing CDK Garbage CollectionCloudPro #82: NFTables mode for kube-proxy | KubernetesThe Self-Taught Cloud Computing EngineerBreaking into cloud computing can feel overwhelming, especially when juggling AWS, Azure, and GCP. The Self-Taught Cloud Computing Engineer stands out because it provides a structured, hands-on approach to mastering all three major cloud platforms.Whether you're aiming for certifications, career growth, or just a deeper understanding, this book walks you through real-world projects and practical skills that matter. If you're serious about leveling up in cloud computing, this is one to check out.GET IT⭐MasterclassFinding Vulnerabilities at Scale: How a JPEG processing vulnerability led to discovering security flaws in major projects like Chromium and WINE.Simplifying Multi-Environment Kubernetes Deployments: Kluctl automates deployments, integrates with Helm and Kustomize, and reduces manual intervention.How to Structure a Terraform Project: The tutorial covers approaches like monorepo and polyrepo setups for managing environments and modules.What is Inference Parallelism and how it worksGuide to deploy SpinKube with WASM on Taikun CloudWorksGo faster! Optimizing Golang for performance and scaleFlatcar brings Container Linux to the CNCF Incubator347 Million reasons to manage HashiCorp Vault as codeSpotlight on Kubernetes upstream training in JapanOpenSSF Expands secure development course with Interactive Labs🔍Secret KnowledgeDeploy Azure Resources from GitLab with No Secrets Using OpenTofu: Learn how to deploy Azure resources using GitLab pipelines with OpenID Connect, all without managing secrets.Promoting Terraform Changes from DEV to PROD: Learn how to use workspaces for separate states and environment folders to clearly separate multi-envs deployments.Implementing Compliant Secrets with AWS Secrets Manager:This tutorial walks you through building detailed access policies and introduces a Terraform module to automate and simplify policy management.Terraform Stacks with Azure:This guide covers dynamic credentials, creating stacks with multiple components, and using orchestration rules for automatic deployment approvals.Why Falco’s new response engine is a game changer for open source cloud native securityThere and back again: Port forwarding with mirrordKCD UK slides: Brownfield realities, platforms orchestration & app devsHow to enter Kubestronaut orbit and beyondA beginner’s guide to progressive delivery of a cloud native applicationFlatcar accepted into CNCF at incubating level⚡TechwaveNFTables mode for kube-proxy | KubernetesAnnouncing CDK Garbage CollectionAnnouncing the general availability of AWS .NET OpenTelemetry librariesAnnouncing new models, customization tools, and enterprise agent upgrades in Azure AI FoundryEmpowering innovation: The next generation of the Phi familyNew Terraform provider for Oracle Database@Google CloudNew Cloud Trace features to troubleshoot latency and errorsAutomating IT Network support with watsonx and Juniper’s Mist AIAmazon ECS increases the CPU limit for ECS tasks to 192 vCPUsAWS Network Firewall introduces automated domain lists and insights🛠️Hackhub:Booster Framework: create event-driven backend microservices that focus on extreme development productivityyunionio/cloudpods: A cloud-native open-source unified multi-cloud and hybrid-cloud platformvmware-tanzu/velero: Backup and migrate Kubernetes applications and their persistent volumestsypuk/aws-client-monitor: advanced monitoring of aws client (both aws cli and any language aws sdk)sjramblings/ebsight: EBSight: Intelligent EBS Volume Analyzerturbot/tailpipe: select * from logs; Tailpipe is an open source SIEM for instant log insights, powered by DuckDB. Analyze millions of events in seconds, right from your terminal.aws-samples/aws-health-events-insight: centralized approach to store and analyze AWS Health events(PHD,SHD)dannysteenman/vscode-iam-service-principal-snippets: VS Code extension that provides autocompletion of all AWS services that can be used as Service Principals in your IAM policies.aws-samples/bedrock-engineer: Autonomous software development agent apps using Amazon Bedrock, capable of customize to create/edit files, execute commands, search the web, use knowledge base, use multi-agents, generative images and more.awslabs/StsSamlDriverCheers,Shreyans SinghEditor-in-ChiefForward to a Friend📢 If your company is interested in reaching an audience of developers and, technical professionals, and decision makers, you may want toadvertise with us.If you have any comments or feedback, just reply back to this email.Thanks for reading and have a great day!*{box-sizing:border-box}body{margin:0;padding:0}a[x-apple-data-detectors]{color:inherit!important;text-decoration:inherit!important}#MessageViewBody a{color:inherit;text-decoration:none}p{line-height:inherit}.desktop_hide,.desktop_hide table{mso-hide:all;display:none;max-height:0;overflow:hidden}.image_block img+div{display:none}sub,sup{font-size:75%;line-height:0} @media (max-width: 100%;display:block}.mobile_hide{min-height:0;max-height:0;max-width: 100%;overflow:hidden;font-size:0}.desktop_hide,.desktop_hide table{display:table!important;max-height:none!important}}
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Shreyans from Packt
24 Feb 2025
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Securing DeepSeek and other AI systems with Microsoft Security

Shreyans from Packt
24 Feb 2025
Applying SRE principles to your MLOps pipelinesCloudPro #81: Securing DeepSeek and other AI systems with Microsoft Security⭐MasterclassAmazon S3 now supports appending data to an objectThe dangers of Terraform automation platformsHyrum's law in GolangCloud dev environmentsA Deep Look into Our New Massive Multitenant ArchitectureTesting with Go and PostgreSQL: Learn how to use ephemeral PostgreSQL instances in Go to simplify tests, reduce resource usage, and improve CI efficiency. Practical tips included.Creating an AMI with Image Builder:Learn to use Packer and Terraform to create pipelines, manage custom AMIs, and streamline automation.Designing a Zero Downtime Migration:Complete guide on Docker: Learn to build and deploy your distributed applications easily to the cloud with Docker.SQL Style Guide: This SQL Style Guide outlines best practices for writing clear and maintainable SQL code.🔍Secret KnowledgeSemantic Versioning to Simplify Release Management:Learn how to use Semantic Versioning with semantic-release and GitHub Actions in your AWS CDK project.How to Use Blocks in Ansible Playbooks:How to use Ansible blocks to group tasks, handle errors gracefully, and manage cleanup operations effectively in your playbooks.Monitoring PM2 in production: Learn how to monitor PM2-managed Node.js apps in New Relic using Flex, capturing key metrics like CPU, memory, and logs with a streamlined setup.Infra as Code with CDK for Terraform: Learn how Zip’s security team used Python CDK for Terraform to enforce security guardrails on AWS infrastructure.Ingesting CloudWatch Logs into OpenSearch: Sample code to showcase ingestion of Amazon CloudWatch logs into Amazon OpenSearch Serverless.AWS Cost for Home Assistant: This tutorial showcases how to get the month-to-date cost and forecast cost and make it available on Home Assistant.Installing Windows XP in DOSBox-X: Learn how to install Windows XP on DOSBox-X, even though it’s not officially supported.Solve Missing AWS Resources in Terraform: The awscc provider, using AWS's Cloud Control API, helps overcome resource gaps.Optimizing PostgreSQL Queries at Scale: Tips to troubleshoot inefficient queries and resource bottlenecks.Getting Started with Terraform Stack: Simplify deployments across environments like dev, staging, and production without complex CI/CD setups.⚡TechwaveIntroducing the AWS Trust CenterAWS CloudTrail network activity events for VPC endpoints now generally availableAWS Verified Access support for non-HTTP resources is now generally availableSecuring DeepSeek and other AI systems with Microsoft SecurityApplying SRE principles to your MLOps pipelinesGrafana Cloud updates: Exemptions in Adaptive Logs, GPU monitoring in AI Observability, and moreIntroducing RHEL AI 1.4: Powering the Next Wave of Generative AI InnovationAlibaba, Datadog, and Quesma Join Forces on Go Compile-Time InstrumentationEnrich Your On-Call Experience With Observability Data at Your Fingertips by Using Datadog On-CallCheers,Shreyans SinghEditor-in-ChiefAWS Cloud ProjectsLately, I've been on the lookout for books that don’t just explain AWS concepts but actually help you build something useful. AWS Cloud Projects caught my attention because it takes a hands-on approach—walking through projects that range from hosting a website to building AI-powered applications. If you're like me and prefer learning by doing, check this out.GET ITForward to a Friend📢 If your company is interested in reaching an audience of developers and, technical professionals, and decision makers, you may want toadvertise with us.If you have any comments or feedback, just reply back to this email.Thanks for reading and have a great day!*{box-sizing:border-box}body{margin:0;padding:0}a[x-apple-data-detectors]{color:inherit!important;text-decoration:inherit!important}#MessageViewBody a{color:inherit;text-decoration:none}p{line-height:inherit}.desktop_hide,.desktop_hide table{mso-hide:all;display:none;max-height:0;overflow:hidden}.image_block img+div{display:none}sub,sup{font-size:75%;line-height:0} @media (max-width: 100%;display:block}.mobile_hide{min-height:0;max-height:0;max-width: 100%;overflow:hidden;font-size:0}.desktop_hide,.desktop_hide table{display:table!important;max-height:none!important}}
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Shreyans from Packt
17 Feb 2025
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AWS CDK is splitting Construct Library and CLI

Shreyans from Packt
17 Feb 2025
Policy as code in Kubernetes: security with seccomp and network policiesCloudPro #80: Policy as code in Kubernetes: security with seccomp and network policiesWe want to makeCloudProeven better for professionals like you! Take ourquick 10-minute surveyand help shape the content we create. As a thank you, you'll receive a freePackteBook (worth $20) and have the option to participate in a paid user interview.Take the Survey NowThe Ultimate Linux Shell Scripting Guide: Automate, Optimize, and Empower tasks with Linux Shell ScriptingI’ve always believed that knowing how to write solid shell scripts is an underrated superpower. Whether you're automating tasks, troubleshooting servers, or just making your daily workflow smoother, scripting saves time and headaches. The Ultimate Linux Shell Scripting Guide caught my eye because it doesn’t just focus on Bash—it also dives into Zsh and even PowerShell on Linux. If you’re looking to sharpen your command-line skills and build real-world automation, this one is worth a read.GET IT⭐MasterclassPolicy as code in Kubernetes: security with seccomp and network policiesThe Kubernetes introduction I wish I had when I started: A complete guideA practitioner’s guide to wide eventsLonghorn backup and restoreKubernetes CI/CD pipelines with CircleCI and DevtronMoving off Heroku, slowlyDo you really need Redis?Discovering hidden vulnerabilities in Portainer with CodeQLWhat’s new with Robinhood, our in-house load-balancing serviceWhat is Helm in Kubernetes? A complete guide🔍Secret KnowledgeReducing the cost of a Google Cloud Dataflow Pipeline by over 60%Reflections on IaC using TerraformHow to Improve Your DevOps AutomationToo Many MicroservicesEnhance Argo CD observability: A step-by-step guide to integrating Prometheus metrics into the UIParsing all the data with open source tools: Unstructured and PgaiMonitoring MySQL using Prometheus Exporter and GrafanaThat time when KinD stopped working in GitHub CodespacesIngesting F1 Telemetry UDP real-time data in AWS EKS⚡TechwaveAWS CDK is splitting Construct Library and CLINew Amazon S3 Tables: Storage optimized for analytics workloadsSpanner Graph is now GAAnnouncing Gen AI Toolbox for Databases by Google CloudGrafana 11.5 release: easily share Grafana dashboards and panels, secure frontend code for plugins, and moreDigma Adds Ability to Predict Coding Issues to Observability PlatformThe Cloud Controller Manager Chicken and Egg ProblemAmazon EC2 now supports automated recovery of Microsoft SQL Server with VSSGKE’s faster cluster upgrades under the hoodAWS CloudTrail network activity events for VPC endpoints now generally availableCheers,Shreyans SinghEditor-in-ChiefAWS Cloud ProjectsLately, I've been on the lookout for books that don’t just explain AWS concepts but actually help you build something useful. AWS Cloud Projects caught my attention because it takes a hands-on approach—walking through projects that range from hosting a website to building AI-powered applications. If you're like me and prefer learning by doing, check this out.GET ITForward to a Friend📢 If your company is interested in reaching an audience of developers and, technical professionals, and decision makers, you may want toadvertise with us.If you have any comments or feedback, just reply back to this email.Thanks for reading and have a great day!*{box-sizing:border-box}body{margin:0;padding:0}a[x-apple-data-detectors]{color:inherit!important;text-decoration:inherit!important}#MessageViewBody a{color:inherit;text-decoration:none}p{line-height:inherit}.desktop_hide,.desktop_hide table{mso-hide:all;display:none;max-height:0;overflow:hidden}.image_block img+div{display:none}sub,sup{font-size:75%;line-height:0} @media (max-width: 100%;display:block}.mobile_hide{min-height:0;max-height:0;max-width: 100%;overflow:hidden;font-size:0}.desktop_hide,.desktop_hide table{display:table!important;max-height:none!important}}
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Our mission is to bring you the freshest updates in Cloud, Identity and Access Management, CI/CD, DevSecOps, Cloud Security, and adjacent domains.

Shreyans from Packt
16 Feb 2025
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Building a Self-Service Internal Developer Platform

Shreyans from Packt
16 Feb 2025
Automating Windows Server Management with PowerShellWe want to make CloudPro even better for professionals like you! Take our quick 10-minute survey and help shape the content we create. As a thank you, you'll receive a free Packt eBook (worth $20) and have the option to participate in a paid user interview.Take the Survey NowCloudPro: Special IssueHey there,As cloud professionals, we are always looking for ways to improve our skills and build solutions that are scalable, secure, and efficient. While regular news and updates keep us informed, sometimes it's good to take a deep dive into topics that matter.That’s why we’re bringing you this special issue of CloudPro, where we explore two carefully selected books that provide practical, hands-on learning experiences.The first book, Platform Engineering for Architects, takes a deep dive into building and maintaining internal developer platforms. We’ll explore a hands-on section on Building a Self-Service Internal Developer Platform with Terraform, helping you understand Infrastructure as Code (IaC) in action.The second book, Windows Server 2025 Administration Fundamentals, goes beyond basic administration to teach PowerShell automation techniques for managing Windows Server environments. We've included a technical excerpt on Automating Active Directory User Management, a crucial skill for IT administrators.The third book, Cloud Observability with Azure Monitor, provides in-depth guidance on monitoring cloud infrastructure. We’ve included a highly practical excerpt on Configuring Azure Monitor for Real-Time Log Analysis, showing how to use KQL queries to detect performance issues before they impact users.If you’re serious about learning by doing, this issue is for you. Dive in and explore!Platform Engineering for ArchitectsBuilding a Self-Service Internal Developer Platform (IDP)One of the primary objectives of platform engineering is to provide an internal developer platform (IDP) that automates infrastructure provisioning. Below is a Terraform snippet to provision a Kubernetes cluster using Infrastructure as Code (IaC):provider "aws" { region = "us-east-1"}resource "aws_eks_cluster" "example" { name = "example-cluster" role_arn = aws_iam_role.example.arn vpc_config { subnet_ids = [aws_subnet.example1.id, aws_subnet.example2.id] }}After applying this configuration, developers can interact with the cluster using kubectl with minimal setup.Why This Matters:Automating platform setup reduces cognitive load on developers, improves consistency, and ensures security best practices are followed.GET IT HEREWindows Server 2025 Administration FundamentalsAutomating Windows Server Management with PowerShellPowerShell scripting is crucial for automating administrative tasks in Windows Server. Below is a script to create, configure, and secure a new Active Directory user automatically:# Define user parameters$UserName = "jdoe"$Password = ConvertTo-SecureString "SecureP@ssw0rd" -AsPlainText -Force# Create the user in Active DirectoryNew-ADUser -Name "John Doe" -SamAccountName $UserName -UserPrincipalName "$UserName@example.com" -Path "OU=Users,DC=example,DC=com" -AccountPassword $Password -Enabled $true# Add user to a security groupAdd-ADGroupMember -Identity "Developers" -Members $UserNameWhy This Matters:Manually managing user accounts is inefficient and error-prone. Automating it ensures compliance and operational efficiency.GET IT HERECloud Observability with Azure MonitorConfiguring Azure Monitor for Real-Time Log AnalysisAzure Monitor helps track and analyze cloud infrastructure performance. The following Kusto Query Language (KQL) query identifies virtual machines experiencing high CPU usage:Perf| where ObjectName == "Processor" and CounterName == "% Processor Time"| summarize AvgCPU = avg(CounterValue) by Computer, bin(TimeGenerated, 5m)| where AvgCPU > 80| order by AvgCPU descTo run this query in Azure Log Analytics, follow these steps:=> Navigate to Azure Monitor > Logs.=> Select your Log Analytics Workspace.=> Paste the KQL query and click Run.Why This Matters: Proactive monitoring ensures infrastructure stability. Automating performance alerts reduces downtime and enhances reliability.GET IT HERE📢 If your company is interested in reaching an audience of developers and, technical professionals, and decision makers, you may want toadvertise with us.If you have any comments or feedback, just reply back to this email.Thanks for reading and have a great day!*{box-sizing:border-box}body{margin:0;padding:0}a[x-apple-data-detectors]{color:inherit!important;text-decoration:inherit!important}#MessageViewBody a{color:inherit;text-decoration:none}p{line-height:inherit}.desktop_hide,.desktop_hide table{mso-hide:all;display:none;max-height:0;overflow:hidden}.image_block img+div{display:none}sub,sup{font-size:75%;line-height:0} @media (max-width: 100%;display:block}.mobile_hide{min-height:0;max-height:0;max-width: 100%;overflow:hidden;font-size:0}.desktop_hide,.desktop_hide table{display:table!important;max-height:none!important}}
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Shreyans from Packt
09 Feb 2025
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Deploying a Serverless Application on AWS Lambda with Terraform

Shreyans from Packt
09 Feb 2025
Designing Scalable Microservices with KubernetesCloudPro: Special IssueHey there,As cloud professionals, we are always looking for ways to improve our skills and build solutions that are scalable, secure, and efficient. While regular news and updates keep us informed, sometimes it's good to take a deep dive into topics that matter.That’s why we’re bringing you this special issue of CloudPro, where we explore two carefully selected books that provide practical, hands-on learning experiences.The first book, AWS Cloud Projects, takes a step-by-step approach to building real-world cloud solutions. We’ll walk through a key project—Deploying a Serverless Application on AWS Lambda with Terraform—to help you understand infrastructure as code (IaC) in action.The second book, Solutions Architect’s Handbook, goes beyond the basics to teach cloud-native architecture best practices. We’ve included an in-depth section on Designing Scalable Microservices with Kubernetes to help you optimize your deployments for performance and efficiency.If you’re serious about learning by doing, this issue is for you. Dive in and explore!AWS Cloud ProjectsLately, I've been thinking a lot about the value of hands-on learning. There's something about actually building projects that sticks with you far longer than just reading concepts. That’s why when I came across AWS Cloud Projects, I knew it was worth sharing with you.This book doesn’t just explain AWS concepts—it walks you through real-world implementations, step by step. Whether you’re spinning up cloud infrastructure, deploying AI-powered applications, or optimizing security, the projects in this book serve as practical blueprints.One particular chapter stood out: Deploying a Serverless Application on AWS Lambda with Terraform. Here’s a detailed excerpt to give you a strong foundation:"In this project, we’ll set up a serverless API using AWS Lambda and API Gateway, all provisioned through Terraform. Infrastructure as Code (IaC) allows us to automate deployments, ensuring repeatability and reducing manual effort.Step 1: Define the Lambda FunctionWe start by defining our Lambda function using Terraform. Below is a basic Terraform configuration to deploy a function:resource "aws_lambda_function" "my_lambda" { function_name = "serverless_api" handler = "index.handler" runtime = "nodejs14.x" role = aws_iam_role.lambda_exec.arn filename = "lambda.zip"}Step 2: Configure API GatewayAPI Gateway allows our Lambda function to be exposed as an HTTP endpoint:resource "aws_api_gateway_rest_api" "api" { name = "serverless_api" description = "API Gateway for our Lambda function"}Step 3: Deploying the InfrastructureTo apply these changes, we use:terraform initterraform apply -auto-approveBy following these steps, you’ll have a fully operational serverless API deployed on AWS using Terraform.If you're someone who learns best by building, AWS Cloud Projects is a must-read. It’s the kind of book that makes learning AWS both practical and engaging.GET IT HERESolutions Architect's HandbookCloud-Native Architecture: Scaling Beyond LimitsAnother book I recently found valuable is Solutions Architect’s Handbook. It goes beyond the basics of cloud architecture and explores scalability, security, and generative AI in real-world applications. If you’re serious about designing scalable cloud systems, this book is a gem.Here’s a deep dive into Designing Scalable Microservices with Kubernetes:"When designing microservices at scale, Kubernetes provides a resilient, self-healing platform. But to truly optimize performance, we must consider three key factors: resource allocation, observability, and network efficiency.Resource Optimization with Horizontal Pod Autoscaler (HPA)Using HPA ensures workloads dynamically adjust to demand:apiVersion: autoscaling/v2kind: HorizontalPodAutoscalermetadata: name: my-app-hpaspec: scaleTargetRef: apiVersion: apps/v1 kind: Deployment name: my-app minReplicas: 2 maxReplicas: 10 metrics: - type: Resource resource: name: cpu targetAverageUtilization: 50Observability with Prometheus & GrafanaMonitoring plays a crucial role in scaling applications. The book explains how to integrate Prometheus and Grafana for real-time insights into resource consumption and request rates.apiVersion: monitoring.coreos.com/v1kind: ServiceMonitormetadata: name: my-app-monitorspec: selector: matchLabels: app: my-app endpoints: - port: metricsNetwork Optimization using IstioIstio allows fine-grained traffic control, helping balance workloads efficiently.apiVersion: networking.istio.io/v1alpha3kind: VirtualServicemetadata: name: my-appspec: hosts: - "my-app.example.com" http: - route: - destination: host: my-app subset: v1With these techniques in place, you can scale workloads efficiently without unnecessary costs. Solutions Architect’s Handbook provides a deeper look into how enterprises design cloud-native applications for high availability and scalability.GET IT HERE📢 If your company is interested in reaching an audience of developers and, technical professionals, and decision makers, you may want toadvertise with us.If you have any comments or feedback, just reply back to this email.Thanks for reading and have a great day!*{box-sizing:border-box}body{margin:0;padding:0}a[x-apple-data-detectors]{color:inherit!important;text-decoration:inherit!important}#MessageViewBody a{color:inherit;text-decoration:none}p{line-height:inherit}.desktop_hide,.desktop_hide table{mso-hide:all;display:none;max-height:0;overflow:hidden}.image_block img+div{display:none}sub,sup{font-size:75%;line-height:0} @media (max-width: 100%;display:block}.mobile_hide{min-height:0;max-height:0;max-width: 100%;overflow:hidden;font-size:0}.desktop_hide,.desktop_hide table{display:table!important;max-height:none!important}}
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Shreyans from Packt
07 Feb 2025
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Google Cloud, AWS, and Azure have collaborated to introduce Kube Resource Orchestrator (kro)

Shreyans from Packt
07 Feb 2025
Coldplay + Microsoft AI CloudPro #79: Google Cloud, AWS, and Azure have collaborated to introduce Kube Resource Orchestrator (kro) AWS Cloud Projects Lately, I've been on the lookout for books that don’t just explain AWS concepts but actually help you build something useful. AWS Cloud Projects caught my attention because it takes a hands-on approach—walking through projects that range from hosting a website to building AI-powered applications. If you're like me and prefer learning by doing, check this out. GET IT ⭐Masterclass The Kubernetes gap in CNAPP Unlock Kubernetes Savings with Kubecost’s Automated Actions How WebAssembly components extend the frontiers of Kubernetes to multi-cloud, edge, and beyond How to migrate an observability platform to open-source and cut costs 🔍Secret Knowledge Implementing GitOps with Kubernetes: Automate, manage, scale, and secure infrastructure and cloud-native applications on AWS and Azure Complete Guide to Logging in Golang with slog Scaling Prometheus with Thanos Automated container CVE and vulnerability patching using Trivy and Copacetic Self-signed Root CA in Kubernetes with k3s, cert-manager and traefik ⚡Techwave IGoogle Cloud, AWS, and Azure have collaborated to introduce Kube Resource Orchestrator (kro) Coldplay + Microsoft AI Amazon S3 Tables now support 10,000 tables per table bucket Insights into Azure's DDoS defense DeepSeek-R1 models now available on AWS 🛠️Hackhub Production-ready Kubernetes distribution for both public and private cloud Application Performance Monitoring System Graceful shutdown and Kubernetes readiness / liveness checks for any Node.js HTTP applications Toolkit for Integrating with your kubernetes dev environment more efficiently Backup your Kubernetes Stateful Applications Cheers, Shreyans Singh Editor-in-Chief The Ultimate Linux Shell Scripting Guide: Automate, Optimize, and Empower tasks with Linux Shell Scripting I’ve always believed that knowing how to write solid shell scripts is an underrated superpower. Whether you're automating tasks, troubleshooting servers, or just making your daily workflow smoother, scripting saves time and headaches. The Ultimate Linux Shell Scripting Guide caught my eye because it doesn’t just focus on Bash—it also dives into Zsh and even PowerShell on Linux. If you’re looking to sharpen your command-line skills and build real-world automation, this one is worth a read. GET IT Forward to a Friend ⭐MasterClass: Tutorials & Guides The Kubernetes gap in CNAPP Initially, CNAPPs focused on integrating various cloud security tools and supporting enterprises during early cloud adoption. As a result, their Kubernetes protection often lacks depth and focuses mainly on surface-level issues like container vulnerabilities, without addressing the complexities of Kubernetes clusters, such as control plane security or runtime policies. This has led to a false sense of security in cloud environments, as CNAPPs fail to offer robust Kubernetes-specific features. Unlock Kubernetes Savings with Kubecost’s Automated Actions Kubecost's new automated actions help users save money in their Kubernetes environments by optimizing resource usage with minimal effort. With features like automated request sizing, cluster turndown, and namespace turndown, Kubecost identifies inefficiencies like over-provisioned containers and shuts down unused clusters or namespaces. Users can set schedules for automating these actions, reducing waste and freeing up resources. How WebAssembly components extend the frontiers of Kubernetes to multi-cloud, edge, and beyond WebAssembly (Wasm) components enable Kubernetes to extend seamlessly across multi-cloud, edge, and other distributed environments by providing a lightweight, portable way to run applications across any architecture. Wasm components, similar to containers, can be written in various languages and connected through shared APIs, allowing for greater flexibility and efficiency. By integrating with Kubernetes through wasmCloud, a Wasm-native orchestrator, organizations can enhance their cloud-native setups without changing existing infrastructure. How to migrate an observability platform to open-source and cut costs Migrating an observability platform to open-source can significantly reduce costs while maintaining control over telemetry data, but it requires careful planning and execution. This process involves identifying essential telemetry data, selecting an open-source stack for logs, metrics, and traces, conducting proofs-of-concept (POCs) across different systems, and ensuring compatibility with various architectures, such as microservices. The migration also includes reconfiguring alerts and dashboards, validating the new setup, and updating related systems like notification and incident management tools. 🔍Secret Knowledge: Learning Resources Implementing GitOps with Kubernetes: Automate, manage, scale, and secure infrastructure and cloud-native applications on AWS and Azure This book provides practical guidance on using GitOps to automate and manage Kubernetes deployments in cloud-native environments like AWS and Azure. It explains core GitOps principles, tools like Argo CD and Flux, and strategies for implementing CI/CD pipelines. The book also covers infrastructure automation with Terraform, security best practices, and observability while addressing cultural transformations in IT for GitOps adoption. By the end, readers will have skills to apply GitOps in scaling, monitoring, and securing Kubernetes deployments efficiently. Complete Guide to Logging in Golang with slog In Golang, structured logging can be efficiently implemented using the `slog` package, introduced in version 1.21. `slog` allows for more organized and detailed log entries by formatting logs as key-value pairs, making them easier to search, filter, and analyze. The package provides flexibility with logging levels (like Debug, Info, Warn, and Error) and supports both text-based and JSON-formatted output. Key components include Loggers, Records, and Handlers, which define how logs are created, stored, and processed. Scaling Prometheus with Thanos Scaling Prometheus with Thanos allows for long-term storage, cost savings, and a global view of metrics in large environments. While Prometheus is great for short-term monitoring, it struggles with long-term storage and querying across multiple clusters. Thanos extends Prometheus by using components like Thanos Query, Sidecar, and Store Gateway to enable scalable, highly available storage through object stores, reducing Prometheus's resource consumption. It also supports downsampling to optimize storage and query performance. Automated container CVE and vulnerability patching using Trivy and Copacetic Automating container vulnerability patching with Trivy and Copacetic (copa) helps protect your applications from potential attacks by scanning and patching container images automatically. Trivy scans container images for vulnerabilities, generating a report in JSON format, while Copacetic reads this report and patches the container image based on detected vulnerabilities. Once patched, the image is rebuilt and rescanned to ensure all vulnerabilities have been fixed. Self-signed Root CA in Kubernetes with k3s, cert-manager and traefik In Kubernetes with k3s, cert-manager, and Traefik, you can create a self-signed root Certificate Authority (CA) to manage TLS certificates locally, useful when your cluster isn't exposed to the internet (e.g., no Let's Encrypt). The process involves setting up cert-manager to automate the issuance, renewal, and secret management of these certificates. You first create a self-signed root CA, which then signs an intermediate CA, and that intermediate CA signs leaf certificates for your services. This setup allows your services to have trusted certificates locally. ⚡TechWave: Cloud News & Analysis Google Cloud, AWS, and Azure have collaborated to introduce Kube Resource Orchestrator (kro), a Kubernetes-native tool that simplifies managing Kubernetes resources by grouping them into reusable APIs. kro allows platform and DevOps teams to define standardized deployments while hiding complexity from end users. Unlike existing tools like Helm and Kustomize, kro natively integrates with Kubernetes Custom Resource Definitions (CRDs) to create a more seamless and scalable experience. It enables organizations to create simplified interfaces for deploying applications, infrastructure, and cloud services, reducing the need for custom-built solutions. kro is open-source and still in early development, inviting community contributions. Coldplay + Microsoft AI Coldplay has teamed up with Microsoft to create an AI-powered fan experience for their new album MOON MUSiC. Using Microsoft Copilot and Azure AI, fans can generate personalized 15-second video remixes of A Film For The Future, a visual accompaniment to the album. The AI platform analyzes emotions and dynamically assembles unique clips, making each fan's experience different. Built with Azure AI Foundry, this project showcases how AI can enhance creativity by transforming audiences into co-creators. This collaboration highlights how generative AI is changing fan engagement, making music experiences more interactive and personalized. Amazon S3 Tables now support 10,000 tables per table bucket Amazon S3 Tables now allow users to create up to 10,000 tables per S3 table bucket, scaling up to 100,000 tables across 10 buckets per AWS Region per account. This expansion, available at no extra cost, enhances the ability to store and manage tabular data efficiently. S3 Tables integrate natively with Apache Iceberg, making them ideal for use with AWS Analytics services like Amazon SageMaker Lakehouse and open-source engines such as Apache Spark and Flink. This update helps businesses scale their data workloads seamlessly across all AWS Regions where S3 Tables are supported. Insights into Azure's DDoS defense During the 2024 holiday season, Azure DDoS Protection defended against evolving cyber threats, including DDoS-for-hire services, massive botnets, and politically motivated attacks. Azure mitigated up to 3,800 attacks daily, with TCP-based attacks being the most common. Notably, a Typhon botnet attack reached 125 million packets per second but was successfully blocked. Attackers increasingly use short bursts to bypass defenses, with 49% of attacks lasting under 5 minutes. To stay protected, Microsoft advises using Azure DDoS Protection with Web Application Firewall (WAF), setting up alerts, and simulating attack scenarios to enhance preparedness against future threats. DeepSeek-R1 models now available on AWS AWS has announced the availability of DeepSeek-R1 models on Amazon Bedrock Marketplace and Amazon SageMaker JumpStart, enabling users to deploy cost-effective and powerful generative AI models. Developed by Chinese AI startup DeepSeek, these models, including DeepSeek-R1-Distill, range from 1.5 to 70 billion parameters and offer 90-95% cost savings compared to similar models. Users can integrate them into Amazon Bedrock for quick deployment or Amazon SageMaker AI for advanced customization and training. Additionally, AWS Trainium and Inferentia chips provide optimized performance for these models on Amazon EC2. 🛠️HackHub: Best Tools for Cloud labring/sealos Sealos is a cloud operating system built on the Kubernetes kernel, designed to simplify managing cloud-native applications. It offers quick deployment of distributed applications and high-availability databases like MySQL, PostgreSQL, and MongoDB. apache/skywalking Apache SkyWalking is an open-source Application Performance Monitoring (APM) system designed for microservices, cloud-native, and container-based architectures. It offers end-to-end distributed tracing, service observability, and diagnostic tools, supporting various programming languages like Java, .NET, PHP, and Python. godaddy/terminus Terminus is a Node.js package that helps manage graceful shutdowns and Kubernetes health checks for HTTP applications. Terminus also provides readiness and liveness checks to inform Kubernetes about the service’s health status. alibaba/kt-connect KT-Connect is a tool that helps developers efficiently connect, redirect, and expose local applications to Kubernetes clusters for easier testing and development. stashed/stash Stash by AppsCode is a cloud-native backup and recovery solution for Kubernetes workloads, making it easier to back up and restore data like volumes and databases in dynamic Kubernetes environments. It simplifies the backup process using tools like restic and Kubernetes CSI Driver VolumeSnapshotter. 📢 If your company is interested in reaching an audience of developers and, technical professionals, and decision makers, you may want toadvertise with us. If you have any comments or feedback, just reply back to this email. Thanks for reading and have a great day! *{box-sizing:border-box}body{margin:0;padding:0}a[x-apple-data-detectors]{color:inherit!important;text-decoration:inherit!important}#MessageViewBody a{color:inherit;text-decoration:none}p{line-height:inherit}.desktop_hide,.desktop_hide table{mso-hide:all;display:none;max-height:0;overflow:hidden}.image_block img+div{display:none}sub,sup{font-size:75%;line-height:0} @media (max-width: 100%;display:block}.mobile_hide{min-height:0;max-height:0;max-width: 100%;overflow:hidden;font-size:0}.desktop_hide,.desktop_hide table{display:table!important;max-height:none!important}}
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Kubernetes health checks: Best practices for configuring

Shreyans from Packt
17 Jan 2025
Datadog Acquires QuickwitCloudPro #78: Kubernetes health checks: Best practices for configuringCloud Conversations: A Fireside Chat with Forrest Brazeal and RubrikJoin us on Jan. 28th @ 10 AM PST for a captivating fireside chat where storytelling meets cloud innovation. Forrest Brazeal—acclaimed cloud architect, author, and the creative mind behind cloud computing's most beloved cartoons—teams up with Rubrik’s Chief Business Officer, Mike Tornincasa to explore the evolving challenges of data protection in a multi-cloud world.Save Your Spot⭐MasterclassKubernetes health checks: Best practices for configuringHow to manage secrets with Azure Key Vault in Kubernetes?Self-Hosting a Container RegistryHow I tuned my CI/CD pipeline to be done in 60 secondsWhat Karpenter v1.0.0 means for Kubernetes autoscaling🔍Secret KnowledgeFive Lessons from a Minor Production IncidentMaking a Postgres Compound Index 50x FasterSQLite Index VisualizationNetworking Costs CalculatorWriting secure Go code⚡TechwaveDatadog Acquires QuickwitAzure Storage—A look back and a look forwardOpenTelemetry and Grafana Labs: what’s new and what’s next in 2025Introducing Amazon Nova foundation models: Frontier intelligence and industry leading price performanceIntroducing the next generation of Amazon SageMaker: The center for all your data, analytics, and AI🛠️HackhubGoliat Dashboard: Manage, visualize, and optimize Terraform deploymentspv-migrate:CLI tool to easily migrate Kubernetes persistent volumesGit-remote-s3:Library that enables using Amazon S3 as a git remote and LFS serverToolGit:Git Productivity ToolkitDatabend: Modern alternative to SnowflakeCheers,Shreyans SinghEditor-in-ChiefWorld’s first 16 Hour LIVE Training to become an AI-Powered human in 2025 🤖The world of AI is evolving at lightning speed, and the only way to stay relevant is to MASTER AI before it masters you.Join the World’s first 2-Day Mastermind Challenge to learn the Tools, Tactics, and Strategies to Automate Your Work Like Never Before!Best part? It is usually for $395, but the first 100 of you get in for free.Claim your FREE spot now!⭐MasterClass: Tutorials & GuidesKubernetes health checks: Best practices for configuringKubernetes health checks are essential for maintaining the reliability, performance, and availability of applications. They use probes to monitor container health and take corrective actions when necessary. The three main types of probes—Liveness, Readiness, and Startup—serve distinct purposes. Liveness probes ensure the application is running and can restart containers in case of failure. Readiness probes determine if a container is ready to handle traffic, temporarily removing it from service if it fails. Startup probes focus on verifying successful initialization for slow-starting applications. Probes can use methods like HTTP, TCP, commands, or gRPC to perform health checks.How to manage secrets with Azure Key Vault in Kubernetes?To manage secrets with Azure Key Vault in Kubernetes, you can use tools like the External Secrets Operator (ESO) and a service principal for authentication. Start by creating an Azure Key Vault, adding your sensitive data (e.g., API tokens) as secrets, and assigning the required permissions to a service principal. Install ESO on your Kubernetes cluster to synchronize secrets from Azure Key Vault to Kubernetes secrets. Then, configure a SecretStore resource in Kubernetes to connect to the Key Vault, using the service principal credentials for authentication. With this setup, applications running in Kubernetes can securely access secrets from Azure Key Vault without exposing sensitive data.Self-Hosting a Container RegistryA self-hosted container registry allows you to store and manage container images on your own infrastructure, giving you full control and independence from third-party services. It involves setting up a server with Docker, configuring a container to run the registry, securing it with user authentication (e.g., via htpasswd), and enabling HTTPS using Nginx and SSL certificates. Once configured, you can push and pull images securely from your registry. While self-hosting ensures privacy and compliance with strict regulations, it requires maintaining and securing the system yourself, making it ideal for enterprises needing tight control over their containerized workflows.How I tuned my CI/CD pipeline to be done in 60 secondsThe process of optimizing my CI/CD pipeline to run in under 60 seconds involved strategic improvements in parallelization, caching, and job refinement. Initially, my pipeline was a simple setup that took over five minutes to execute, which hampered my productivity. I split the pipeline into multiple parallel jobs, grouped similar tasks to save cost and debug time, and leveraged GitHub's caching for dependencies, linting tools, and test data to drastically reduce redundant downloads and processing. By using a Makefile for local testing, I accelerated iterations and ensured the GitHub YAML was simple and reliable. Further tuning, like combining related jobs and adding task-specific cache keys, helped balance speed and cost. These optimizations allowed me to reduce the runtime for building, testing, linting, and deploying my Golang app to under a minute, making the pipeline more efficient and developer-friendly.What Karpenter v1.0.0 means for Kubernetes autoscalingKarpenter v1.0.0 marks a significant milestone for Kubernetes autoscaling, offering a mature and stable solution for dynamic node lifecycle management. As an open-source tool designed to optimize workload placement and reduce costs, Karpenter automatically provisions and deprovisions nodes based on application demands and Kubernetes scheduling constraints. With its vendor-neutral design and integration with cloud-specific APIs like AWS, Azure, and GCP, Karpenter enhances scalability, cost-efficiency, and ease of management across diverse cloud environments. The 1.0 release ensures API stability, supports features like workload consolidation and rolling updates for node images, and enables seamless integration with other CNCF tools, empowering organizations to build intelligent and scalable cloud-native infrastructure.🔍Secret Knowledge: Learning ResourcesFive Lessons from a Minor Production IncidentA minor production incident in the AWS News platform highlighted five key lessons about software operations. First, investing in observability early paid off, as comprehensive dashboards allowed for quick identification and resolution of the issue within an hour. Second, a robust software architecture and testing regime enabled safe and confident adjustments to the system during a crisis. Third, the YAGNI principle (You Aren't Gonna Need It) has trade-offs; while simpler designs work initially, anticipating growth with safeguards like alarms could prevent issues. Fourth, bugs often travel in pairs, as one problem often uncovers or triggers another, underscoring the need for thorough debugging processes. Lastly, data lineage simplifies troubleshooting, as stored intermediate data made it easy to pinpoint and fix the root causes. These lessons underscore the importance of building resilient systems even for small-scale projects.Making a Postgres Compound Index 50x FasterOptimizing a compound index reduced query latency by 50x, showcasing the importance of index field order in PostgreSQL. Initially, a query filtering by status and event_type, and sorting by occurred_at, was slow due to an index ordered by occurred_at first. This structure forced PostgreSQL to scan millions of rows inefficiently. By reordering the index to prioritize filter fields (status, event_type) before the sort field (occurred_at), the search space narrowed significantly, enabling PostgreSQL to process only relevant subsets. This simple yet impactful adjustment improved endpoint latency from ~500ms to under 10ms, highlighting how understanding index design can drastically enhance database performance.SQLite Index VisualizationSQLite uses a B-Tree structure to organize indexes, ensuring efficient data storage and quick searches. A B-Tree consists of nodes, with each node storing cells that contain the indexed data, a row ID, and links to child nodes. The data is saved on pages, which have fixed sizes, and every index is structured hierarchically for balance and fast lookups. Using tools like sqlite3_analyzer, we can inspect indexes and visualize their layout, which includes pages, cells, and relationships. For better understanding, visualizations can be created from index data dumps, showcasing how SQLite handles different types of indexes (e.g., ASC/DESC, multi-column, and unique indexes) and optimizations through commands like VACUUM or REINDEX. This approach makes it possible to compare index designs, analyze efficiency, and explore SQLite’s inner workings.Networking Costs CalculatorThe Networking Costs Calculator is a self-hosted tool designed to estimate AWS networking costs. It includes a serverless backend that fetches updated prices for networking services using AWS Price List Query APIs, storing them in a DynamoDB table, and a ReactJS frontend hosted on S3 and CloudFront for user interaction. Users can select an AWS region, specify services, and input data transfer details to view estimated monthly costs. Deployment requires a Linux OS, NodeJS, AWS CLI, and AWS CDK, with setup guided by a provided script. The tool helps users calculate costs for features like Data Transfer, NAT Gateways, and Transit Gateway Attachments.Writing secure Go codeWriting secure Go code involves following best practices to ensure that your code is robust, secure, and performs well. Key steps include staying informed about security updates by subscribing to the Go mailing list, keeping Go versions up to date for security patches, and regularly checking for vulnerabilities using tools like go vet, staticcheck, and golangci-lint. It's also important to test code for race conditions using Go’s built-in race detector and scan for known vulnerabilities with tools like govulncheck and gosec. Regular fuzz testing and keeping dependencies updated can help prevent security issues and improve the overall quality of your code.⚡TechWave: Cloud News & AnalysisDatadog Acquires QuickwitDatadog has acquired Quickwit, an open-source, cloud-native search engine designed for fast, scalable, and cost-effective log management. This acquisition will help Datadog address the needs of organizations in regulated industries, such as finance and healthcare, that must meet strict data residency, privacy, and regulatory requirements. By integrating Quickwit, Datadog aims to provide seamless observability and real-time insights without compromising data ownership or requiring multiple logging tools. Quickwit will continue to support its open-source community with a major update under the Apache License 2.Azure Storage—A look back and a look forwardAzure Storage has played a critical role in supporting AI advancements and cloud adoption in 2024, with innovations like Azure Blob Storage enabling large-scale AI model training and Azure Elastic SAN providing cloud-native SAN capabilities. Key highlights include rapid growth in Premium SSD v2 adoption, enhanced Kubernetes support through Azure Container Storage, and improved security measures like Microsoft Defender for Storage. Looking ahead to 2025, Azure Storage aims to empower businesses with smarter data solutions, including seamless integration of unstructured data with AI services, advanced disaster recovery options, and optimized storage for mission-critical workloads, all while collaborating with key partners to drive innovation.OpenTelemetry and Grafana Labs: what’s new and what’s next in 2025OpenTelemetry, a rapidly growing open-source observability project, achieved major milestones in 2024, including support for profiling, stability for the Spring Boot starter, and updates to Semantic Conventions for databases, AI, and more. Grafana Labs actively contributed to OpenTelemetry advancements, integrating it with Prometheus and introducing tools like Grafana Alloy and Beyla for enhanced compatibility and eBPF-based auto-instrumentation. Looking ahead to 2025, the OpenTelemetry Collector is expected to reach stability with its v1 release, signaling long-term support, while new innovations like expanded eBPF capabilities and enhanced protocol support aim to simplify trace-to-profile correlation and drive broader adoption across the observability ecosystem.Introducing Amazon Nova foundation models: Frontier intelligence and industry leading price performanceAmazon Nova is Amazon's latest suite of advanced foundation models available on Amazon Bedrock, designed for both text and multimodal (text, image, and video) tasks. With models tailored for understanding (like text analysis, document processing, and multimodal reasoning) and creative content generation (producing images and videos), Nova combines top-tier intelligence with cost efficiency. Models like Nova Micro, Lite, and Pro cater to diverse business needs, from fast, low-cost tasks to complex, high-accuracy workflows, and all support extensive customization for specific industries.Introducing the next generation of Amazon SageMaker: The center for all your data, analytics, and AIAmazon SageMaker has launched its next-generation platform, integrating tools for data exploration, analytics, machine learning (ML), and generative AI into a unified environment. The revamped platform features the SageMaker Unified Studio (preview), which consolidates data and AI workflows, enabling users to process data, develop ML models, and create generative AI applications seamlessly. It introduces key capabilities like the SageMaker Lakehouse for unified data access, a visual ETL tool for data transformation, and the Amazon Bedrock IDE for building advanced generative AI solutions.🛠️HackHub: Best Tools for CloudGoliat Dashboard:The Goliat Dashboard is an open-source project built with Astro that provides an interactive interface for managing Terraform Cloud resources. It integrates seamlessly with the Terraform Cloud API to display real-time metrics and organize projects and workspaces for better resource visibility. The dashboard also supports the DigitalOcean API and plans to add Azure, AWS, and OpenAI integrations for enhanced insights. With dynamic routes and automatic updates, no additional configuration is needed after API connections.pv-migrate:pv-migrate is a command-line tool and kubectl plugin designed to simplify the migration of Kubernetes PersistentVolumeClaim (PVC) data. It addresses challenges in renaming, resizing, or moving PVCs between namespaces, clusters, or cloud providers by securely transferring data using rsync over SSH. With support for in-cluster and cross-cluster migrations, customizable manifests, and multiple migration strategies, pv-migrate enables efficient and flexible volume data handling. It supports various architectures, including arm64 and amd64, and offers shell completions for popular terminals like bash and zsh.Git-remote-s3:git-remote-s3 is a Python-based tool that enables using Amazon S3 as a Git remote and Git LFS (Large File Storage) server. It provides a seamless way to manage Git repositories and LFS files directly on S3 buckets. Users can push, pull, and manage branches in their repositories stored on S3 while ensuring encryption for security. The tool also integrates with AWS services like CodePipeline by allowing zipped repository archives for pipeline source actions. It supports concurrent users, IAM-based access control, and debug logging, making it versatile for managing versioned code or assets on AWS.ToolGit:ToolGit is a productivity toolkit for Git that extends its functionality with various custom commands and aliases to simplify and automate common Git tasks. It includes utilities for cleaning up branches, force-pulling remote changes, restoring file modes, managing branch history, and more. Easy to install, ToolGit integrates seamlessly into your workflow by adding its scripts to your PATH environment variable, enabling them as Git sub-commands. Each command comes with detailed help text for user-friendly operation, making it a practical enhancement for developers seeking efficiency in version control.Databend:Databend is an open-source cloud data warehouse built in Rust, designed as a cost-effective alternative to Snowflake. It focuses on high-speed query execution and data ingestion, supporting complex analysis of large datasets. Databend offers features such as full ACID compliance, schema flexibility, advanced indexing, and real-time data updates. It can be deployed on both cloud and on-prem environments, providing enterprise-level performance with reduced costs.📢 If your company is interested in reaching an audience of developers and, technical professionals, and decision makers, you may want toadvertise with us.If you have any comments or feedback, just reply back to this email.Thanks for reading and have a great day!*{box-sizing:border-box}body{margin:0;padding:0}a[x-apple-data-detectors]{color:inherit!important;text-decoration:inherit!important}#MessageViewBody a{color:inherit;text-decoration:none}p{line-height:inherit}.desktop_hide,.desktop_hide table{mso-hide:all;display:none;max-height:0;overflow:hidden}.image_block img+div{display:none}sub,sup{font-size:75%;line-height:0} @media (max-width: 100%;display:block}.mobile_hide{min-height:0;max-height:0;max-width: 100%;overflow:hidden;font-size:0}.desktop_hide,.desktop_hide table{display:table!important;max-height:none!important}}
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13 Dec 2024
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How to ace (CKS 2.0) Certified Kubernetes Security Specialist Exam

Shreyans from Packt
13 Dec 2024
We’re leaving Kubernetes -GitpodCloudPro #77: How to ace (CKS 2.0) Certified Kubernetes Security Specialist ExamStop worrying about your to-do list.Zapier connects the apps you use every day, so you can focus on what matters most.Start working more efficiently - Create your free account today.Get started for free⭐MasterclassWe’re leaving Kubernetes -GitpodHow to ace (CKS 2.0) Certified Kubernetes Security Specialist ExamCreating alerts from panels in Kubernetes Monitoring: An overlooked, powerhouse featureManaged DevOpsPoolsOptimizing Kubernetes Costs with Multi-Tenancy and Virtual Clusters🔍Secret KnowledgeI followed the official AWS Amplify guide and was charged $1,100What I wish someone told me about PostgresChoose the Right Instance Size for AWS RDSBuilding databases over a weekendMigrating billions of records: moving our active DNS database while it’s in use⚡TechwaveStreamline Kubernetes cluster management with new Amazon EKS Auto ModeOpenTelemetry for Generative AISimplify AWS governance with declarative policiesIntroducing Buy with AWSAWS Database Migration Service now automates time-intensive schema conversion tasks using generative AIAmazon DynamoDB reduces prices🛠️HackhubPkdnsis a DNS server providing self-sovereign and censorship-resistant domain names.Macosprovides a way to run macOS inside a Docker container using KVM acceleration.Pgpdfis an extension for PostgreSQL that provides a pdf data type and assorted functions.Kloudliteis an open-source platform designed to provide seamless and secure development environments for building distributed applications.OpenObserveis a cloud-native observability platform built specifically for logs, metrics, traces, analytics, and RUM designed to work at a petabyte scale.This is our final edition of CloudPro for 2024, but don’t worry—we’ll be back with more insights and updates in January 2025. In the meantime, we’ve got a little holiday treat for you!Packt has some exciting offers lined up to help you boost your tech skills and get ready for an amazing new year! It’s the perfect opportunity to relax, learn something new, and stay ahead in your field. Keep an eye out for these special holiday deals!From all of us at the Packt Newsletters team, we wish you a joyful holiday season and a fantastic start to 2025. See you next year!Cheers,Shreyans SinghEditor-in-ChiefMastering Software Deployments at the Edge: A User’s Guide to Diverting DisasterSoftware delivery to dedicated edge devices is one of the most complex challenges faced by IT professionals today. While edge deployments come with inherent complications, it’s possible to avoid the pitfalls. With this guide in hand, a little planning, and the right tools and strategies in place, you can be confident you’ll never push a faulty update at scale.Read the Guide⭐MasterClass: Tutorials & GuidesWe’re leaving Kubernetes -GitpodGitpod decided to move away from Kubernetes after realizing it isn't ideal for cloud-based development environments due to their unique demands: they are highly stateful, interactive, resource-intensive, and require broad system permissions. Despite Kubernetes' strengths in scalability and orchestration for production workloads, Gitpod faced challenges with performance, security, and resource management at scale, particularly with CPU and memory usage, storage, autoscaling, and startup times. Extensive experimentation with custom solutions for these issues proved complex and limited. While Kubernetes excels for controlled, predictable application workloads, Gitpod’s experience highlighted the mismatched fit for development environments, leading to a shift toward more tailored infrastructure.How to ace (CKS 2.0) Certified Kubernetes Security Specialist ExamTo ace the Certified Kubernetes Security Specialist (CKS) 2.0 exam, start by ensuring you have a solid understanding of Kubernetes fundamentals and meet the prerequisite of obtaining the Certified Kubernetes Administrator (CKA) certification. The exam focuses on hands-on, performance-based tasks across key domains like cluster setup, hardening, system and supply chain security, and runtime monitoring. Utilize trusted study materials such as the Kubernetes documentation, platforms like KodeKloud, and mock exams from Killer.sh, which are often harder than the real exam. During the test, manage time effectively by tackling easier questions first, using aliases and shortcuts for command-line tasks, and referring to allowed documentation for efficient problem-solving.Creating alerts from panels in Kubernetes Monitoring: An overlooked, powerhouse featureGrafana Cloud's new alerting feature for Kubernetes Monitoring simplifies incident management by letting users create alerts directly from app panels. This powerful yet understated tool pulls queries from panels, lets you set thresholds, and sends notifications when they're exceeded. Ideal for tracking metrics like CPU usage, costs, and network health, it allows teams to manage infrastructure proactively.Managed DevOpsPoolsManaged DevOps Pools (MDP) simplify Azure DevOps agent management by providing a Microsoft-managed platform (PaaS) that integrates seamlessly with Azure DevOps to create scalable, secure, and customizable agent pools. Acting as a wrapper around Virtual Machine Scale Sets, MDP automates infrastructure management, allowing agents to be spun up on demand based on workload needs. It supports various image types, including preconfigured Microsoft Azure Pipeline Images, and offers private networking options for enhanced security.Optimizing Kubernetes Costs with Multi-Tenancy and Virtual ClustersManaging Kubernetes costs effectively requires innovative approaches, especially as organizations scale. Traditional methods like resource quotas, autoscaling, and cost monitoring help, but they fall short when dealing with the inefficiencies of running numerous underutilized clusters. Multi-tenancy with virtual Kubernetes clusters offers a cost-efficient solution by enabling multiple teams or applications to share a single host cluster while maintaining strong isolation and flexibility. Virtual clusters act like fully functional Kubernetes clusters within a host cluster, reducing redundancies and management fees while improving resource utilization.🔍Secret Knowledge: Learning ResourcesI followed the official AWS Amplify guide and was charged $1,100The author followed an AWS Amplify guide to integrate OpenSearch and ended up with a shocking $1,100 bill due to unexpected behaviors in the setup. Specifically, the guide’s default configurations created high-cost OpenSearch instances without making costs transparent, and resources were not properly deleted when shutting down the environment. The author identified issues like persistent OpenSearch domains and a lack of warnings about default expensive configurations. AWS refunded the charges and advised setting up budget alerts, but the problematic behavior in the guide still exists. The post cautions developers about potential pitfalls when using AWS Amplify with OpenSearch and highlights the importance of understanding AWS costs and configurations.What I wish someone told me about PostgresPostgres is a powerful but complex database system, and its vast official documentation can be overwhelming. Key tips for getting started include normalizing your data to avoid redundancy, except when performance optimizations (denormalization) are necessary. Understand SQL quirks like handling NULL as "unknown" and utilizing functions like COALESCE. Enhance the usability of psql by configuring features like pagers and shortcuts (e.g., \x for expanded view). Use indexes wisely, considering their order and suitability for different queries (e.g., prefix searches need text_pattern_ops). Be cautious with locks during operations like ALTER TABLE, as long-held locks can disrupt other processes. Embrace tools like query plans (EXPLAIN) to optimize performance, and always start with the Postgres documentation and community advice for best practices.Choose the Right Instance Size for AWS RDSTo choose the right AWS RDS instance size, start by evaluating your workload's needs in terms of CPU, memory, storage, and network bandwidth. Use AWS instance families to match these requirements, with memory-optimized instances for RAM-intensive tasks and burstable instances for cost-sensitive, sporadic workloads. Monitor key performance metrics, like CPU utilization, freeable memory, and network throughput, using AWS CloudWatch, and adjust the instance size based on consistent patterns—scale down if utilization is low and up if demands are high. Optimize performance with database tuning and continuously revisit your setup to balance cost, scalability, and performance effectively.Building databases over a weekendBuilding a database over a weekend is made feasible with tools like Apache DataFusion, which simplifies creating custom database functionalities. DataFusion provides a modular framework where you can extend or replace components like query parsing, logical and physical planning, and execution engines. By leveraging its SQL and DataFrame interfaces, you can implement custom operators, such as a streaming window operator for handling infinite data streams, by defining execution plans and integrating them into the planning pipeline. Through logical and physical optimizations, you ensure efficient query execution tailored to your use case.Migrating billions of records: moving our active DNS database while it’s in useCloudflare recently migrated its active DNS database to a new cluster to handle increasing data volumes and improve performance. Originally, DNS records were stored in a primary Postgres database alongside other services, but as Cloudflare scaled, this became increasingly problematic. The migration involved separating DNS records from other data, implementing a new gRPC API for better control, and using a Change Data Capture and Transfer Service to move data efficiently with minimal downtime. The new setup, which included better indexing and partitioning, reduced API latency and improved overall performance.⚡TechWave:CloudNews & AnalysisStreamline Kubernetes cluster management with new Amazon EKS Auto ModeWith EKS Auto Mode, AWS simplifies Kubernetes cluster management, automating compute, storage, and networking, enabling higher agility and performance while reducing operational overhead.OpenTelemetry for Generative AIOpenTelemetry is being enhanced to support observability for generative AI applications, ensuring reliable performance, cost efficiency, and safety. It introduces Semantic Conventions to standardize telemetry data across platforms and an Instrumentation Library to automate data collection, initially focusing on the OpenAI Python API. Key signals like Traces, Metrics, and Events provide insights into model behavior, usage, and interactions, aiding in debugging, optimization, and performance tuning. Developers can easily integrate this observability into applications using the provided Python library, enabling monitoring of model inputs, outputs, and operational details.Simplify AWS governance with declarative policiesAWS Declarative Policies simplify governance by enabling organizations to define and enforce cloud resource configurations centrally and at scale. Administrators can set standards, like blocking public access to VPCs or requiring specific Amazon Machine Images (AMIs), which are automatically applied across accounts, including new ones joining the organization. These policies reduce complexity by maintaining configurations even as AWS services evolve, providing actionable error messages to users for non-compliant actions. Initially supporting Amazon EC2, VPC, and EBS, declarative policies are managed via AWS Organizations and other AWS tools.Introducing Buy with AWSAWS introduces "Buy with AWS," a new feature that streamlines the procurement of cloud solutions by integrating AWS Marketplace purchasing directly into AWS Partner websites. Customers can discover, try, and purchase solutions with their AWS accounts, benefiting from simplified billing, centralized subscription management, and cost optimization tools. For example, users can start free trials or request private offers for products like Wiz or Databricks directly from Partner sites, with seamless transitions to co-branded procurement pages. Partners, in turn, can enhance their customer experience with AWS Marketplace APIs to showcase products, provide filters, and track metrics for engagement and sales.AWS Database Migration Service now automates time-intensive schema conversion tasks using generative AIAWS Database Migration Service (AWS DMS) now uses generative AI to automate up to 90% of schema conversion tasks, simplifying migrations from commercial databases to PostgreSQL. Powered by large language models hosted on Amazon Bedrock, this feature tackles complex code conversions like stored procedures and proprietary functions that traditional methods often struggle with. It reduces migration costs, accelerates timelines, and allows users to focus on optimizing their applications post-migration.Amazon DynamoDB reduces pricesAmazon DynamoDB, a serverless NoSQL database with high performance and scalability, has significantly reduced its pricing: on-demand throughput costs are now 50% lower, and global table replicated writes are up to 67% cheaper. These changes make on-demand mode—ideal for scaling serverless applications without capacity planning—the default and most cost-effective option for many workloads, even those with steady usage. Additionally, global tables now offer the same pricing for multi-Region and single-Region writes, simplifying cost management for globally distributed applications.🛠️HackHub: Best Tools for CloudPkdnsis a DNS server providing self-sovereign and censorship-resistant domain names.Macosprovides a way to run macOS inside a Docker container using KVM acceleration.Pgpdfis an extension for PostgreSQL that provides a pdf data type and assorted functions.Kloudliteis an open-source platform designed to provide seamless and secure development environments for building distributed applications.OpenObserveis a cloud-native observability platform built specifically for logs, metrics, traces, analytics, and RUM designed to work at a petabyte scale.📢 If your company is interested in reaching an audience of developers and, technical professionals, and decision makers, you may want toadvertise with us.If you have any comments or feedback, just reply back to this email.Thanks for reading and have a great day!*{box-sizing:border-box}body{margin:0;padding:0}a[x-apple-data-detectors]{color:inherit!important;text-decoration:inherit!important}#MessageViewBody a{color:inherit;text-decoration:none}p{line-height:inherit}.desktop_hide,.desktop_hide table{mso-hide:all;display:none;max-height:0;overflow:hidden}.image_block img+div{display:none}sub,sup{font-size:75%;line-height:0} @media (max-width: 100%;display:block}.mobile_hide{min-height:0;max-height:0;max-width: 100%;overflow:hidden;font-size:0}.desktop_hide,.desktop_hide table{display:table!important;max-height:none!important}}
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06 Dec 2024
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Kubernetes Gateway API v1.2: WebSockets, Timeouts, Retries, and More

Shreyans from Packt
06 Dec 2024
Google Kubernetes Engine supports 65,000-node clustersCloudPro #76: Kubernetes Gateway API v1.2: WebSockets, Timeouts, Retries, and MoreMastering Software Deployments at the Edge: A User’s Guide to Diverting DisasterSoftware delivery to dedicated edge devices is one of the most complex challenges faced by IT professionals today. While edge deployments come with inherent complications, it’s possible to avoid the pitfalls. With this guide in hand, a little planning, and the right tools and strategies in place, you can be confident you’ll never push a faulty update at scale.Read the Guide⭐MasterclassI have asked this SSH question in every AWS interviewHow to Ace (CKAD) Certified Kubernetes Application Developer examKubernetes resource model, controller pattern and operator SDK refresherHow we avoided an outage caused by running out of IPs in EKSDeploying a Serverless REST API🔍Secret KnowledgeHow to Differentiate Manual Changes from Terraform Changes in S3 BucketManaging AWS EKS access entries with Terraform and OpenTofuUber’s billion trips migration setup30 Days of CNCF projects | Day 5: What is Crossplane + demoCI/CD automation with Tekton: GitHub PR pipeline guide⚡TechwaveKubernetes Gateway API v1.2: WebSockets, Timeouts, Retries, and MoreGoogle Kubernetes Engine supports 65,000-node clustersContainer Insights with enhanced observability now available in Amazon ECSNew Amazon S3 Tables: Storage optimized for analytics workloadsGrafana 11.4 release: Introducing support for OpenSearch PPL and OpenSearch SQL in the AWS CloudWatch data source plugin🛠️HackhubNovascans your cluster for installed Helm charts and then cross-checks them against all known Helm repositories.Pglite-fusionallows you to embed an SQLite database in your PostgreSQL table. AKA multitenancy has been solved.Drasiis a data processing platform that simplifies detecting changes in data and taking immediate action.SonarIACis a static code analyzer for Infrastructure-as-Code languages such as CloudFormation and Terraform, as well as DevOps like Docker and Kubernetes.Pg_flois a CLI to move and transform data between PostgreSQL databases using Logical Replication.Cheers,Shreyans SinghEditor-in-ChiefLearn Million Dollar AI Strategies & Tools in this 3 hour AI Training for Free.This 3 hour power packed workshop that will teach you 30+ AI Tools, make you a master of prompting & talk about hacks, strategies & secrets that only the top 1% know of.By the way, here’s sneak peek into what’s inside the training:-Making money using AI-The latest AI developments, like GPT o1-Creating an AI clone of yourself, that functions exactly like YOU-10 BRAND new AI tools to automate your work & cut work time by 50%1.5 Million people are already RAVING about this hands-on Training on AI Tools. Don’t take our word for it? Attend for yourself and see.Register here⭐MasterClass: Tutorials & GuidesI have asked this SSH question in every AWS interviewIn AWS interviews, a popular and insightful question is: "You're trying to SSH into an EC2 instance, but it’s failing. How would you troubleshoot?" While it seems simple, the question evaluates a candidate's problem-solving approach, understanding of AWS infrastructure, and real-world experience. A key expectation is that candidates check security groups first since they act as firewalls controlling traffic. Surprisingly, many overlook this basic yet crucial step, diving into more complex areas instead. The question thus highlights how well candidates understand AWS fundamentals and prioritize troubleshooting steps effectively.How to Ace (CKAD) Certified Kubernetes Application Developer examThe Certified Kubernetes Application Developer (CKAD) exam is a practical certification focused on Kubernetes application deployment, maintenance, and troubleshooting. Ideal for engineers managing containerized applications in Kubernetes, it tests real-world problem-solving skills across topics like application design, deployment strategies, observability, security, and networking. The exam includes hands-on tasks performed in a live Kubernetes cluster and allows access to documentation during the test. It's considered pre-professional in difficulty, with a 66% passing score and retake opportunities. Preparation involves mastering Kubernetes CLI commands, understanding concepts like pods, deployments, and ConfigMaps, and practicing with tools like Killer.sh to simulate the exam experience.Kubernetes resource model, controller pattern and operator SDK refresher] The Resource Model uses etcd as the state store, with resources defined by objects like Kind, Group, Version, and Resource, which are mapped to API endpoints (e.g., /apis/apps/v1/deployments). Informers and SharedInformers optimize resource management by efficiently watching changes in objects, reducing API server load. Informers utilize Reflectors to fetch and cache data, Listers to retrieve objects from the cache, and Workqueues to process events like Add, Update, or Delete. Controllers act as loops that continuously reconcile the current state of resources (from their status) with the desired state (defined in their spec).How we avoided an outage caused by running out of IPs in EKSAdevinta's platform team tackled the critical issue of IP exhaustion in their EKS clusters by implementing custom networking with a secondary CIDR to allocate additional IPs, avoiding potential outages. The problem stemmed from the VPC-CNI plugin's default behavior of assigning an IP address per pod, which strained available IPs in their VPC as clusters scaled. While alternatives like switching to Cilium or enabling IPv6 were explored, the chosen solution balanced speed and reliability, enabling the team to complete their migration to EKS. By carefully testing and rolling out custom networking, the team stabilized IP usage, avoided service disruptions, and ensured seamless scaling for their multi-tenant cluster architecture.Deploying a Serverless REST APIThis guide walks you through deploying a REST API using AWS services like API Gateway, Lambda, DynamoDB, and Cognito with Terraform. The project involves creating an API that allows users to manage a list of Sicilian dishes. It starts with configuring AWS as the provider and setting up an S3 bucket to store Terraform state files. You then create an IAM role with the necessary permissions for Lambda to interact with DynamoDB. The Lambda function itself is written in Python, with methods to handle CRUD operations on the DynamoDB table based on the incoming HTTP requests. Authentication is added via Amazon Cognito to secure write operations. Finally, the API routes (GET, POST, PATCH, DELETE) are implemented to handle the dish data, including a recursive scan function to fetch all dishes from the table.🔍Secret Knowledge: Learning ResourcesHow to Differentiate Manual Changes from Terraform Changes in S3 BucketTo differentiate manual changes from Terraform changes in an S3 bucket managed by Terraform, you can use AWS CloudTrail, EventBridge, Lambda, and SNS notifications. CloudTrail logs all S3 API actions, including manual and automated changes. EventBridge filters these logs for specific events (e.g., uploads or deletions) and triggers a Lambda function. The Lambda function processes the events to exclude actions initiated by Terraform (using the IAM role or userIdentity details associated with Terraform). It sends SNS notifications only for manual changes, ensuring Terraform modifications do not trigger alerts.Managing AWS EKS access entries with Terraform and OpenTofuManaging AWS EKS access entries with Terraform and OpenTofu simplifies authentication and authorization for Kubernetes clusters by replacing the outdated aws-auth ConfigMap with a more scalable and robust EKS API. Access entries allow direct API-based management of IAM users, roles, and predefined policies, eliminating manual ConfigMap updates prone to errors. With tools like Terraform and OpenTofu, you can define access entries as Infrastructure as Code (IaC), enabling automated and secure access control at scale. This method seamlessly integrates AWS IAM for authentication with Kubernetes RBAC for authorization.Uber’s billion trips migration setupUber successfully migrated its complex trip fulfillment infrastructure to a hybrid cloud environment without downtime by employing innovative strategies. To ensure uninterrupted service for millions of global users, Uber implemented a backward compatibility layer, maintaining support for existing APIs during the transition. They also used shadow validation, mirroring requests and comparing responses between old and new systems to identify discrepancies.30 Days of CNCF projects | Day 5: What is Crossplane + demoCI/CD automation with Tekton: GitHub PR pipeline guideAutomating CI/CD with Tekton involves leveraging its Kubernetes-native framework to define pipelines for building, testing, and deploying code. Using tools like Minikube, kubectl, and Ngrok, you can set up a local Tekton environment and integrate pre-built tasks such as git-clone and kaniko for cloning repositories and building Docker images. To automate workflows triggered by GitHub pull requests, Tekton Triggers can be configured to listen for webhooks, validate events, and execute pipelines, ensuring CI/CD tasks like building, testing, and updating GitHub statuses happen seamlessly.⚡TechWave:CloudNews & AnalysisKubernetes Gateway API v1.2: WebSockets, Timeouts, Retries, and MoreGateway API v1.2 introduces significant updates and improvements to Kubernetes networking, focusing on WebSocket support, HTTPRoute timeouts, retries, and more robust infrastructure annotations. It graduates several features, like HTTPRoute timeouts and backend protocol support, to the stable Standard channel, ensuring better resilience and backward compatibility. Notably, the release brings two breaking changes: the removal of outdated v1alpha2 versions for GRPCRoute and ReferenceGrant, and a shift in .status.supportedFeatures structure for greater future flexibility.Google Kubernetes Engine supports 65,000-node clustersGoogle Kubernetes Engine (GKE) now supports clusters of up to 65,000 nodes, a scale designed to meet the growing computational demands of massive AI workloads, including training and serving trillion-parameter AI models. This enhancement allows for faster training times, larger model scalability, and flexibility in resource allocation for diverse tasks. GKE achieves this through innovations like transitioning to a Spanner-based key-value store for enhanced reliability and a revamped control plane for faster scaling and operations.Container Insights with enhanced observability now available in Amazon ECSAmazon ECS now features enhanced observability with Container Insights, helping users monitor and troubleshoot container workloads more effectively. This capability offers detailed metrics, logs, and visual dashboards to quickly identify root causes of issues, reduce detection and repair times, and improve application performance. It supports granular resource monitoring, proactive issue management, cross-account observability, and seamless integration with CloudWatch services like Application Signals and Logs.New Amazon S3 Tables: Storage optimized for analytics workloadsAmazon S3 Tables are a new storage option optimized for analytics workloads, supporting tabular data in Apache Iceberg format. This managed service provides faster query performance (up to 3x) and handles higher transactions per second (up to 10x) compared to self-managed storage. S3 Tables integrate seamlessly with query engines like Amazon Athena and Apache Spark and include features like automatic maintenance (e.g., compaction, snapshot management) and logical grouping with namespaces.Grafana 11.4 release: Introducing support for OpenSearch PPL and OpenSearch SQL in the AWS CloudWatch data source pluginGrafana 11.4 now supports OpenSearch Piped Processing Language (PPL) and OpenSearch SQL in its AWS CloudWatch data source plugin, allowing AWS users more flexibility in querying CloudWatch Logs. These new query options join the existing Logs Insights QL, enabling users to filter and aggregate logs using their preferred language without duplicating data. Features like syntax highlighting, live code completion, and sample queries enhance usability.🛠️HackHub: Best Tools for CloudNovascans your cluster for installed Helm charts and then cross-checks them against all known Helm repositories.Pglite-fusionallows you to embed an SQLite database in your PostgreSQL table. AKA multitenancy has been solved.Drasiis a data processing platform that simplifies detecting changes in data and taking immediate action.SonarIACis a static code analyzer for Infrastructure-as-Code languages such as CloudFormation and Terraform, as well as DevOps like Docker and Kubernetes.Pg_flois a CLI to move and transform data between PostgreSQL databases using Logical Replication.📢 If your company is interested in reaching an audience of developers and, technical professionals, and decision makers, you may want toadvertise with us.If you have any comments or feedback, just reply back to this email.Thanks for reading and have a great day!*{box-sizing:border-box}body{margin:0;padding:0}a[x-apple-data-detectors]{color:inherit!important;text-decoration:inherit!important}#MessageViewBody a{color:inherit;text-decoration:none}p{line-height:inherit}.desktop_hide,.desktop_hide table{mso-hide:all;display:none;max-height:0;overflow:hidden}.image_block img+div{display:none}sub,sup{font-size:75%;line-height:0} @media (max-width: 100%;display:block}.mobile_hide{min-height:0;max-height:0;max-width: 100%;overflow:hidden;font-size:0}.desktop_hide,.desktop_hide table{display:table!important;max-height:none!important}}
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Shreyans from Packt
29 Nov 2024
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A Guide to Kubernetes Network Policies

Shreyans from Packt
29 Nov 2024
How Postgres stores data on diskCloudPro #75: A Guide to Kubernetes Network Policies⭐MasterclassA Guide to Kubernetes Network PoliciesDockerfile Instructions - ADD vs. COPYHow to add new worker node to existing Kubernetes clusterHow I Reduced Docker Image Size from 588 MB to Only 47.7 MBAmbient mesh: Can sidecar-less Istio make your application faster?🔍Secret KnowledgeOops, I Deleted the AWS Auth RolesRising Incidents on Git PlatformsHow Postgres stores data on diskHow We Integrate a New Service in Under 1 Hour for 25 ClustersEleventeen ways to delete an AWS resource🛠️HackhubApeman: AWS attack path management toolCyphernetes: A Kubernetes Query LanguageDesed:A command-line tool for complex sed scriptsKueue: Kubernetes-native Job QueueingAWS CloudFormation StarterkitCheers,Shreyans SinghEditor-in-Chief⭐MasterClass: Tutorials & GuidesA Guide to Kubernetes Network PoliciesIn Kubernetes, network policies control the traffic between pods, ensuring secure communication within the cluster. There are two main types: Layer 4 (L4) and Layer 7 (L7) policies. L4 policies manage traffic at the transport layer (e.g., TCP/UDP) based on IP addresses and ports, while L7 policies operate at the application layer (e.g., HTTP) with more fine-grained control over communication between services. L7 policies often require a service mesh like Linkerd, which adds features like mutual TLS (mTLS) for encrypted communication.Dockerfile Instructions - ADD vs. COPY`COPY` is simple and secure, only transferring files from the local build context to the image. In contrast, `ADD` offers extra functionality, such as downloading files from URLs or automatically extracting compressed archives. However, this added flexibility introduces complexity and potential security risks. Best practice recommends using `COPY` for most cases due to its straightforwardness, reserving `ADD` for situations where its unique features are necessary.How to add new worker node to existing Kubernetes clusterTo add a new worker node to an existing Kubernetes cluster, start by setting up a new Ubuntu 24.04 instance and configuring its hostname and `/etc/hosts` file. Disable swap memory, load necessary kernel modules, and install containerd as the container runtime. Add the Kubernetes APT repository, then install Kubernetes components like kubeadm, kubelet, and kubectl. On the control plane node, generate a kubeadm join command with a token. Run this command on the new worker node to join the cluster. Finally, verify the addition by checking the nodes from the control plane using `kubectl get nodes`.How I Reduced Docker Image Size from 588 MB to Only 47.7 MBTo significantly reduce a Docker image size, using multi-stage builds is key. In this case, a Flask app's image size was reduced from 588 MB to just 47.7 MB by switching to the lightweight Python 3.9-alpine image and using a multi-stage build approach. Multi-stage builds allow you to separate the build and runtime environments, keeping only essential runtime dependencies in the final image. Additionally, minimizing the number of layers by combining commands, using a `.dockerignore` file to exclude unnecessary files, and optimizing the Dockerfile structure contributed to this impressive 91.89% reduction.Ambient mesh: Can sidecar-less Istio make your application faster?Ambient mode in Istio, introduced in 2022, allows a sidecar-less architecture that can sometimes make applications faster. In traditional service meshes, adding latency is expected, but tests with ambient mode showed slightly improved performance in some cases, like the Bookinfo application's details service. This is partly because of more efficient connection handling and reduced syscalls in ambient mode, which offsets the overhead of extra hops via lightweight ztunnels.🔍Secret Knowledge: Learning ResourcesOops, I Deleted the AWS Auth RolesThe author, while managing an EKS (Elastic Kubernetes Service) cluster using Terraform, accidentally deleted the AWS authentication roles, which are crucial for accessing the cluster. This resulted in losing access to the EKS cluster. The fix involved manually restoring access by modifying the EKS API access configuration via the AWS Console, re-adding the necessary admin roles, and regenerating the `aws-auth` config map.Rising Incidents on Git PlatformsIn 2023, incidents affecting popular DevOps platforms like GitHub, Bitbucket, GitLab, and Jira increased, with issues such as RepoJacking, security vulnerabilities, and performance disruptions. GitHub saw a rise in attacks, with hackers exploiting vulnerabilities and hosting malware. Atlassian products like Bitbucket and Jira faced security flaws, with Jira experiencing a significant increase in incidents. GitLab suffered from performance issues and security breaches, including a major Proxyjacking attack.How Postgres stores data on diskPostgres stores data on disk in a well-organized, file-based structure within a directory, typically located at `/var/lib/postgresql/data`. Inside this directory, you'll find folders like `base/`, where actual database data for each database is stored, and `pg_wal/`, which holds the Write-Ahead Log (WAL) files that help recover data after crashes. Each table and database object is ultimately represented by files in these directories. PostgreSQL uses clever abstractions to manage data, such as snapshots for transactions, dynamic shared memory for handling multiple processes, and special mechanisms like tablespaces for physically separating certain data.How We Integrate a New Service in Under 1 Hour for 25 ClustersThe article describes how a team integrated a new service called Otterize across 25 clusters in under an hour, emphasizing that while the technical setup was quick, the lengthy licensing process took over four months. The integration involved automating several steps using GitOps and tools like Argo CD to avoid manual errors. Key tasks included creating an organization and environment, inviting users, integrating with Kubernetes, securely managing credentials, and deploying the setup through a script.Eleventeen ways to delete an AWS resourceOur goal is to reduce AWS costs, but the deletion methods vary widely, often leaving users frustrated. They categorize deletion patterns, from simple one-click deletes to more complex confirmations that require typing specific phrases or acknowledging consequences. Ultimately, AWS should standardize its deletion processes to improve user experience and security, and they call for more data on user behavior during these actions.🛠️HackHub: Best Tools for CloudApeman: AWS attack path management toolProject Apeman is an AWS attack path management tool that helps analyze and manage AWS security data. To set it up, you need Docker, Python, and a virtual environment. Once the system is initialized, Apeman gathers AWS account data, including authorization details and ARNs, which are then ingested into a graph database for analysis.Cyphernetes: A Kubernetes Query LanguageCyphernetes is a Cypher-inspired query language for Kubernetes, simplifying complex Kubernetes operations with intuitive, SQL-like queries. It allows developers to easily manage Kubernetes resources by expressing relationships between them, such as connecting deployments to services and ingresses.Desed:A command-line tool for complex sed scriptsDesed is a command-line tool designed to help debug and understand complex `sed` scripts. It allows users to step through their scripts, both forwards and backwards, preview how substitute commands will affect the pattern space, and set breakpoints to examine the program's state. Desed also supports hot reloading, so changes to the source code can be instantly applied without restarting the debugger.Kueue: Kubernetes-native Job QueueingKueue is a Kubernetes-native job queueing system that manages when jobs start and stop based on a variety of factors, such as priorities and resource availability. It offers features like job management with FIFO strategies, resource fair sharing, dynamic resource reclaim, and integration with popular job types like BatchJob and Kubeflow training jobs.AWS CloudFormation StarterkitAn AWS CloudFormation starterkit including CI/CD and dev tools that allow you to securely and quickly deploy CloudFormation stacks on your AWS account.📢 If your company is interested in reaching an audience of developers and, technical professionals, and decision makers, you may want toadvertise with us.If you have any comments or feedback, just reply back to this email.Thanks for reading and have a great day!*{box-sizing:border-box}body{margin:0;padding:0}a[x-apple-data-detectors]{color:inherit!important;text-decoration:inherit!important}#MessageViewBody a{color:inherit;text-decoration:none}p{line-height:inherit}.desktop_hide,.desktop_hide table{mso-hide:all;display:none;max-height:0;overflow:hidden}.image_block img+div{display:none}sub,sup{font-size:75%;line-height:0} @media (max-width: 100%;display:block}.mobile_hide{min-height:0;max-height:0;max-width: 100%;overflow:hidden;font-size:0}.desktop_hide,.desktop_hide table{display:table!important;max-height:none!important}}
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Shreyans from Packt
22 Nov 2024
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How Netflix solved the issue with Java 21 virtual threads

Shreyans from Packt
22 Nov 2024
Understand your Kubernetes cost drivers and the best ways to rein in spendingCloudPro #74: How Netflix solved the issue with Java 21 virtual threadsScale your scrapers with Apify’s Black Friday Boost planGet a 30% prepaid usage bonus on Apify this Black Friday.Scrape data for LLMs, machine learning, competitive intelligence, product mapping, or any AI use cases.Use ready-made scrapers or build your own.The Boost plan ends December 5 - grab it before it’s gone!Claim your bonus now⭐MasterclassDeploying Databases in K8s with PostgreSQL, CloudNative-PG, and Ceph Rook on Amazon EKSKubernetes and Access Management API, the new authentication in EKSHow Netflix solved the issue with Java 21 virtual threadsDoes Talos Kubernetes and Omni live up to the hype?Understand your Kubernetes cost drivers and the best ways to rein in spending🔍Secret KnowledgeHack the Cybersecurity InterviewTroubleshooting: Terminal LagMonitor these Kubernetes signals to help rightsize your fleetGetting Started with Cilium Service Mesh on Amazon EKSHow AppsFlyer migrated from Kafka to Kubernetes using Karpenter🛠️HackhubHigh-performance server for NATS.ioA collection of Bash One-Liners and terminal tricksdistributed key value NoSQL database that uses RocksDB as storage engineBuild, Share and Run Both Your Kubernetes Cluster and Distributed ApplicationsRun your deep learning workloads on Kubernetes more easily and efficientlyCheers,Shreyans SinghEditor-in-ChiefForward to a Friend⭐MasterClass: Tutorials & GuidesDeploying Databases in K8s with PostgreSQL, CloudNative-PG, and Ceph Rook on Amazon EKSThis article explains how to deploy and manage a PostgreSQL database on Kubernetes using Amazon EKS. It combines CloudNativePG, a PostgreSQL operator, with Ceph Rook, a storage orchestrator, to ensure data persistence and high availability in a Kubernetes environment. A step-by-step guide is provided for deploying and configuring these tools, including using Helm charts, setting up storage with Ceph, and monitoring the database cluster.Kubernetes and Access Management API, the new authentication in EKSIn AWS EKS (Elastic Kubernetes Service), the new authentication and access management system simplifies how users and worker nodes access Kubernetes clusters. Previously, access was managed using an "aws-auth" ConfigMap, which could be complex and prone to errors. Now, AWS introduces the EKS Access Management API, allowing users to authenticate through AWS IAM directly and authorize Kubernetes actions via Kubernetes RBAC. This approach removes the need for managing ConfigMaps manually, offers predefined EKS Access Policies, and enhances security by eliminating hidden root users. Additionally, integration with Terraform makes access control easier to implement and manage.How Netflix solved the issue with Java 21 virtual threadsIn Java 21, Netflix encountered an issue with virtual threads, which are lightweight threads designed to improve concurrency by suspending and resuming automatically. The problem involved some Netflix services using Java 21, Spring Boot 3, and Tomcat, where servers stopped processing requests due to sockets stuck in a `CLOSE_WAIT` state. Virtual threads were getting "pinned" to operating system threads while waiting to acquire locks. Since all OS threads became blocked, Tomcat couldn't process incoming requests, causing the system to hang. The underlying issue was traced to locking mechanisms in virtual threads, leading to thread contention and blocked OS threads.Does Talos Kubernetes and Omni live up to the hype?Talos Kubernetes and Sidero Omni live up to the hype by providing an intuitive and efficient way to set up and manage Kubernetes clusters. With Omni, you can easily create a Talos cluster without needing to access your virtual machines directly, making the process more streamlined. Setting up clusters, scaling nodes, and even upgrading Kubernetes versions are straightforward, with minimal manual intervention required. While there are some areas for improvement, like simplifying static IP configuration, the overall experience is highly positive.Understand your Kubernetes cost drivers and the best ways to rein in spendingTo reduce Kubernetes-related costs, it's important to monitor key cost drivers such as CPU, memory, storage, and networking. Costs are driven by resource usage and the rate at which they are consumed, so reducing unnecessary usage and optimizing resource allocation is key. Over-provisioning, idle resources, and inefficient scaling are common cost culprits. Regularly adjusting resource requests, leveraging auto-scaling tools like Horizontal Pod Autoscaler, and monitoring metrics with tools like Grafana and Prometheus can help optimize usage.🔍Secret Knowledge: Learning ResourcesHack the Cybersecurity Interview"Hack the Cybersecurity Interview, Second Edition" is a comprehensive guide designed to help individuals prepare for interviews across a wide range of cybersecurity roles. The book covers technical and behavioral interview questions for positions like cybersecurity engineer, penetration tester, and CISO, while also offering tips on personal branding, stress management, and negotiation. It provides real-world advice and industry insights, making it an essential resource for anyone looking to succeed in the competitive field of cybersecurity.Troubleshooting: Terminal LagIn this troubleshooting session, Tavis Ormandy investigates why launching the xterm terminal on his Windows machine is significantly slower compared to Fedora. He identifies that Windows applies an animation effect that delays interaction with the terminal. Through a series of tests and debugging, he discovers that the X server software (X410) adds unnecessary animation effects, which can’t be disabled directly. He uses a debugger to bypass the issue, improving the performance slightly. After further optimizations with features and caching processes, he brings the Windows terminal's performance closer to Fedora’s, significantly reducing the lag.Monitor these Kubernetes signals to help rightsize your fleetTo ensure your Kubernetes environment is both cost-efficient and sustainable, it's crucial to monitor signals like CPU, memory, disk I/O, and network utilization. Over-provisioning leads to wasted resources and high costs, while under-provisioning can degrade performance. Watch for indicators such as high resource usage, slow application performance, or low utilization to fine-tune your setup. Tools like Prometheus and Grafana, along with autoscaling, can help you dynamically adjust resources, ensuring optimal balance, reduced costs, and improved sustainability.Getting Started with Cilium Service Mesh on Amazon EKSThe blog post explains how Cilium, an open-source networking and security solution powered by eBPF, enhances network connectivity between workloads in Amazon EKS (Elastic Kubernetes Service). Cilium provides advanced networking, load balancing, encryption, and observability without the need for sidecar proxies. It integrates seamlessly with Amazon EKS to improve microservice communication, multi-cluster networking, and network policy enforcement. Cilium Service Mesh, built into Cilium, leverages eBPF and Envoy to offer high performance and low overhead for traffic management, security, and monitoring.How AppsFlyer migrated from Kafka to Kubernetes using KarpenterAppsFlyer, a global leader in mobile attribution, migrated their Kafka infrastructure to Kubernetes using Amazon EKS, simplifying management and improving performance. By switching from EC2 instances to Graviton-powered nodes, they achieved a 75% increase in throughput, 58% better write I/O, and reduced costs by 30%. AWS solutions like Strimzi Kafka Operator, Rancher’s Local Path Provisioner, and Karpenter autoscaler helped optimize local storage management and scaling. This transition cut CPU core usage in half and enhanced AppsFlyer's Kafka cluster’s scalability, efficiency, and resilience.🛠️HackHub: Best Tools for Cloudnats-io/nats-serverNATS is a high-performance, cloud-native messaging system designed for modern distributed systems, offering secure and efficient communication between digital services, devices, and systems. It supports over 40 client languages.onceupon/Bash-Oneliner"Bash-Oneliner" is a blog focusing on simple and effective bash commands for tasks like data parsing and Linux system maintenance. The commands are compatible with systems like Ubuntu, Amazon Linux, RedHat, Linux Mint, Mac, and CentOS. The blog covers topics such as variable manipulation, system management, math operations, and networking.apache/kvrocksApache Kvrocks is a distributed key-value NoSQL database that uses RocksDB as its storage engine and is compatible with the Redis protocol. It aims to reduce memory costs and increase capacity compared to Redis. Kvrocks supports key features like asynchronous replication, high availability with Redis Sentinel, and a centralized cluster management system that works with any Redis cluster client.sealerio/sealerSealer is a tool that simplifies the delivery of distributed applications by packaging a Kubernetes cluster and all application dependencies into a "ClusterImage." A ClusterImage functions similarly to a Docker image, containing everything needed to run the application, such as container images, YAML files, and Helm charts. Users can write a "Kubefile" to build this image and a "Clusterfile" to describe how to run it.kubedl-io/kubedlKubeDL is a CNCF sandbox project that simplifies running deep learning workloads on Kubernetes. It offers features like unified scheduling for training and inference, advanced optimization, and native model tracking using Kubernetes Custom Resource Definitions (CRDs).📢 If your company is interested in reaching an audience of developers and, technical professionals, and decision makers, you may want toadvertise with us.If you have any comments or feedback, just reply back to this email.Thanks for reading and have a great day!*{box-sizing:border-box}body{margin:0;padding:0}a[x-apple-data-detectors]{color:inherit!important;text-decoration:inherit!important}#MessageViewBody a{color:inherit;text-decoration:none}p{line-height:inherit}.desktop_hide,.desktop_hide table{mso-hide:all;display:none;max-height:0;overflow:hidden}.image_block img+div{display:none}sub,sup{font-size:75%;line-height:0} @media (max-width: 100%;display:block}.mobile_hide{min-height:0;max-height:0;max-width: 100%;overflow:hidden;font-size:0}.desktop_hide,.desktop_hide table{display:table!important;max-height:none!important}}
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Shreyans from Packt
15 Nov 2024
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Unlock Kubernetes Savings with Kubecost’s Automated Actions

Shreyans from Packt
15 Nov 2024
Red Hat Enterprise Linux AI Now Generally AvailableCloudPro #73: Unlock Kubernetes Savings with Kubecost’s Automated ActionsShouldn't GenAI be doing all the cyber crap jobs by now?Learn about the latest in GenAI for vulnerability management, exposure management and cyber-asset security when you attend the CyberRisk Summit. This free, virtual event on Wednesday, Nov. 20 includes expert speakers from Yahoo, Wells Fargo, IBM, Vulcan Cyber and more. This is the ninth, semi-annual CyberRisk Summit. Attendees can request CPE credits, and all registrants get access to the session recordings. Join us!Register for free⭐MasterclassThe Kubernetes gap in CNAPPUnlock Kubernetes Savings with Kubecost’s Automated ActionsHow WebAssembly components extend the frontiers of Kubernetes to multi-cloud, edge, and beyondHow to migrate an observability platform to open-source and cut costs🔍Secret KnowledgeImplementing GitOps with Kubernetes: Automate, manage, scale, and secure infrastructure and cloud-native applications on AWS and AzureComplete Guide to Logging in Golang with slogScaling Prometheus with ThanosAutomated container CVE and vulnerability patching using Trivy and CopaceticSelf-signed Root CA in Kubernetes with k3s, cert-manager and traefik🛠️HackhubProduction-ready Kubernetes distribution for both public and private cloudApplication Performance Monitoring SystemGraceful shutdown and Kubernetes readiness / liveness checks for any Node.js HTTP applicationsToolkit for Integrating with your kubernetes dev environment more efficientlyBackup your Kubernetes Stateful ApplicationsCheers,Shreyans SinghEditor-in-ChiefREGISTER FOR FREEProtect Your .NET Applications with Dotfuscator: Stop Reverse Engineering and Secure Your IPYour .NET applications face constant threats from reverse engineering, leaving your proprietary code, sensitive logic, and IP exposed. But with Dotfuscator by PreEmptive, you can safeguard your software. Dotfuscator’s advanced obfuscation features—like renaming, control flow obfuscation, and string encryption—harden your code against tampering, unauthorized access, and IP theft.Take control of your application’s security and keep your code and intellectual property secure. Empower your development process with Dotfuscator today—because your .NET apps deserve protection that lasts.Start Free Trial⭐MasterClass: Tutorials & GuidesThe Kubernetes gap in CNAPPInitially, CNAPPs focused on integrating various cloud security tools and supporting enterprises during early cloud adoption. As a result, their Kubernetes protection often lacks depth and focuses mainly on surface-level issues like container vulnerabilities, without addressing the complexities of Kubernetes clusters, such as control plane security or runtime policies. This has led to a false sense of security in cloud environments, as CNAPPs fail to offer robust Kubernetes-specific features.Unlock Kubernetes Savings with Kubecost’s Automated ActionsKubecost's new automated actions help users save money in their Kubernetes environments by optimizing resource usage with minimal effort. With features like automated request sizing, cluster turndown, and namespace turndown, Kubecost identifies inefficiencies like over-provisioned containers and shuts down unused clusters or namespaces. Users can set schedules for automating these actions, reducing waste and freeing up resources.How WebAssembly components extend the frontiers of Kubernetes to multi-cloud, edge, and beyondWebAssembly (Wasm) components enable Kubernetes to extend seamlessly across multi-cloud, edge, and other distributed environments by providing a lightweight, portable way to run applications across any architecture. Wasm components, similar to containers, can be written in various languages and connected through shared APIs, allowing for greater flexibility and efficiency. By integrating with Kubernetes through wasmCloud, a Wasm-native orchestrator, organizations can enhance their cloud-native setups without changing existing infrastructure.How to migrate an observability platform to open-source and cut costsMigrating an observability platform to open-source can significantly reduce costs while maintaining control over telemetry data, but it requires careful planning and execution. This process involves identifying essential telemetry data, selecting an open-source stack for logs, metrics, and traces, conducting proofs-of-concept (POCs) across different systems, and ensuring compatibility with various architectures, such as microservices. The migration also includes reconfiguring alerts and dashboards, validating the new setup, and updating related systems like notification and incident management tools.🔍Secret Knowledge: Learning ResourcesImplementing GitOps with Kubernetes: Automate, manage, scale, and secure infrastructure and cloud-native applications on AWS and AzureThis book provides practical guidance on using GitOps to automate and manage Kubernetes deployments in cloud-native environments like AWS and Azure. It explains core GitOps principles, tools like Argo CD and Flux, and strategies for implementing CI/CD pipelines. The book also covers infrastructure automation with Terraform, security best practices, and observability while addressing cultural transformations in IT for GitOps adoption. By the end, readers will have skills to apply GitOps in scaling, monitoring, and securing Kubernetes deployments efficiently.Complete Guide to Logging in Golang with slogIn Golang, structured logging can be efficiently implemented using the `slog` package, introduced in version 1.21. `slog` allows for more organized and detailed log entries by formatting logs as key-value pairs, making them easier to search, filter, and analyze. The package provides flexibility with logging levels (like Debug, Info, Warn, and Error) and supports both text-based and JSON-formatted output. Key components include Loggers, Records, and Handlers, which define how logs are created, stored, and processed.Scaling Prometheus with ThanosScaling Prometheus with Thanos allows for long-term storage, cost savings, and a global view of metrics in large environments. While Prometheus is great for short-term monitoring, it struggles with long-term storage and querying across multiple clusters. Thanos extends Prometheus by using components like Thanos Query, Sidecar, and Store Gateway to enable scalable, highly available storage through object stores, reducing Prometheus's resource consumption. It also supports downsampling to optimize storage and query performance.Automated container CVE and vulnerability patching using Trivy and CopaceticAutomating container vulnerability patching with Trivy and Copacetic (copa) helps protect your applications from potential attacks by scanning and patching container images automatically. Trivy scans container images for vulnerabilities, generating a report in JSON format, while Copacetic reads this report and patches the container image based on detected vulnerabilities. Once patched, the image is rebuilt and rescanned to ensure all vulnerabilities have been fixed.Self-signed Root CA in Kubernetes with k3s, cert-manager and traefikIn Kubernetes with k3s, cert-manager, and Traefik, you can create a self-signed root Certificate Authority (CA) to manage TLS certificates locally, useful when your cluster isn't exposed to the internet (e.g., no Let's Encrypt). The process involves setting up cert-manager to automate the issuance, renewal, and secret management of these certificates. You first create a self-signed root CA, which then signs an intermediate CA, and that intermediate CA signs leaf certificates for your services. This setup allows your services to have trusted certificates locally.🛠️HackHub: Best Tools for Cloudlabring/sealosSealos is a cloud operating system built on the Kubernetes kernel, designed to simplify managing cloud-native applications. It offers quick deployment of distributed applications and high-availability databases like MySQL, PostgreSQL, and MongoDB.apache/skywalkingApache SkyWalking is an open-source Application Performance Monitoring (APM) system designed for microservices, cloud-native, and container-based architectures. It offers end-to-end distributed tracing, service observability, and diagnostic tools, supporting various programming languages like Java, .NET, PHP, and Python.godaddy/terminusTerminus is a Node.js package that helps manage graceful shutdowns and Kubernetes health checks for HTTP applications. Terminus also provides readiness and liveness checks to inform Kubernetes about the service’s health status.alibaba/kt-connectKT-Connect is a tool that helps developers efficiently connect, redirect, and expose local applications to Kubernetes clusters for easier testing and development.stashed/stashStash by AppsCode is a cloud-native backup and recovery solution for Kubernetes workloads, making it easier to back up and restore data like volumes and databases in dynamic Kubernetes environments. It simplifies the backup process using tools like restic and Kubernetes CSI Driver VolumeSnapshotter.📢 If your company is interested in reaching an audience of developers and, technical professionals, and decision makers, you may want toadvertise with us.If you have any comments or feedback, just reply back to this email.Thanks for reading and have a great day!*{box-sizing:border-box}body{margin:0;padding:0}a[x-apple-data-detectors]{color:inherit!important;text-decoration:inherit!important}#MessageViewBody a{color:inherit;text-decoration:none}p{line-height:inherit}.desktop_hide,.desktop_hide table{mso-hide:all;display:none;max-height:0;overflow:hidden}.image_block img+div{display:none}sub,sup{font-size:75%;line-height:0} @media (max-width: 100%;display:block}.mobile_hide{min-height:0;max-height:0;max-width: 100%;overflow:hidden;font-size:0}.desktop_hide,.desktop_hide table{display:table!important;max-height:none!important}.reverse{display:table;width: 100%;
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Shreyans from Packt
08 Nov 2024
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Better Kubernetes YAML Editing with (Neo)vim

Shreyans from Packt
08 Nov 2024
PostgreSQL cloud native High Availability and moreCloudPro #72: Better Kubernetes YAML Editing with (Neo)vim⭐Masterclass:Unlock the Full Potential of Kubernetes for Scalable Application ManagementKubernetes pod and container restartingBetter Kubernetes YAML Editing with (Neo)vimMonitoring kubernetes events with kubectl and Grafana LokiPractical Logging for PHP Applications with OpenTelemetryUsing 1Password with External Secrets Operator in a GitOps way🔍Secret Knowledge:Build your own SQS or Kafka with PostgresRevealing the Inner Structure of AWS Session TokensAn Opinionated Ramp Up Guide to AWS PentestingGang scheduling pods on Amazon EKS using AWS Batch multi-node processing jobsApplication Availability Depends on Dependencies🛠️HackHub: Best Tools for the CloudPostgreSQL cloud native High Availability and moreKubernetes Operator to automate Helm, DaemonSet, StatefulSet & Deployment updatesRuns and manages databases, message queues, etc on K8sPowerful workflow engine and end-to-end pipeline solutions implemented with native Kubernetes resourcesconfigure kubernetes objects on multiple clusters using jsonnetCheers,Shreyans SinghEditor-in-Chief⭐MasterClass: Tutorials & GuidesKubernetes pod and container restartingIn Kubernetes, a Pod is the smallest deployable unit, often containing one or more containers. When a container or pod needs to be restarted due to errors or updates, Kubernetes offers several methods to do so. For example, you can restart a Pod by deleting it, and Kubernetes will automatically recreate it if it’s part of a Deployment. Alternatively, you can restart a specific container within a Pod using commands like `kubectl exec` for more precise control. These features allow Kubernetes to maintain high availability and resilience in a cloud environment.Better Kubernetes YAML Editing with (Neo)vimEditing Kubernetes YAML files can be tricky, but using Neovim, a modern version of Vim, can make it much easier. Neovim is lightweight, highly customizable, and integrates well with your terminal, making it ideal for DevOps and platform engineers. By configuring Neovim specifically for YAML files, you can set up features like auto-indentation, syntax highlighting, folding, and autocompletion, all of which help reduce errors and improve efficiency.Monitoring kubernetes events with kubectl and Grafana LokiIn Kubernetes, monitoring events is crucial for understanding the status and issues related to Pods, WorkerNodes, and other components. You can use `kubectl` to view these events directly, or you can enhance your monitoring setup by integrating Kubernetes events with Grafana Loki. By capturing events as logs using a tool like the `k8s-event-logger`, which listens to the Kubernetes API, you can store them in Loki, create metrics with RecordingRules, and visualize them in Grafana.Practical Logging for PHP Applications with OpenTelemetryPractical logging for PHP applications using OpenTelemetry involves instrumenting your PHP code to collect and correlate log data with other observability signals like traces and metrics. This approach is particularly useful in microservices-based architectures, where understanding the interactions between different services is crucial for maintaining system stability. By using OpenTelemetry, developers can standardize how telemetry data is collected and exported, reducing complexity.Using 1Password with External Secrets Operator in a GitOps wayTo manage secrets securely in a GitOps environment using Kubernetes, you can integrate 1Password with the External Secrets Operator. This setup allows you to automatically fetch and inject secrets stored in 1Password into your Kubernetes cluster. By using tools like ArgoCD, Helm, or FluxCD, you can deploy and manage this integration efficiently. The External Secrets Operator pulls secrets from 1Password via 1Password Connect, a proxy that ensures availability and reduces API requests.🔍Secret Knowledge: Learning ResourcesBuild your own SQS or Kafka with PostgresYou can build your own version of SQS (Simple Queue Service) or Kafka using PostgreSQL by setting up tables and queries that mimic the functionality of these popular message queues and streams. For SQS, you create a table to store messages, with columns that help manage message visibility, delivery attempts, and order. You can then write queries to insert messages, retrieve them while respecting visibility timeouts, and delete them after processing. For Kafka, you expand this setup by storing messages persistently and keeping track of where each consumer group is in the message stream, allowing multiple consumers to process messages independently and in parallel, similar to Kafka's partitioning system.Revealing the Inner Structure of AWS Session TokensBy reverse engineering these tokens, the research team developed tools to analyze and modify them programmatically. This allowed them to uncover previously unknown details about AWS's cryptography and authentication protocols. Their findings showed that while AWS's security measures are robust, understanding the structure of these tokens can help defenders better protect against potential attacks. Additionally, the research raises questions about the privacy and integrity of these tokens.An Opinionated Ramp Up Guide to AWS Pentesting)Lizzie Moratti's "Opinionated Ramp Up Guide to AWS Pentesting" offers a detailed roadmap for becoming proficient in AWS pentesting, emphasizing practical experience over certifications. The guide is tailored for those with a foundational understanding of networking and security, and it stresses the importance of broad knowledge before delving into deeper cloud-specific skills. The guide also touches on industry pitfalls, such as reliance on automated tools and the challenges of cloud pentesting in a fast-evolving environment.Gang scheduling pods on Amazon EKS using AWS Batch multi-node processing jobsAWS Batch now supports multi-node parallel (MNP) jobs for Amazon EKS, allowing you to gang schedule pods across multiple nodes for tasks that require extensive computation, like machine learning or weather forecasting. Previously, MNP jobs were only available on Amazon ECS. With this update, you can use AWS Batch on EKS to run distributed processing jobs, such as those with Dask, a Python library for parallel computing. The setup involves defining job configurations that include a main node running the scheduler and worker nodes executing the tasks. This approach ensures efficient communication and scaling across nodes, streamlining complex computations in a managed environment.Application Availability Depends on DependenciesModern applications depend on various services and components, meaning their reliability is tightly linked to the uptime of these dependencies. For example, if an application like Tekata.io needs to maintain 99.9% uptime, but it relies on several services with only 99.9% uptime each, the combined effect could reduce Tekata.io’s overall availability. To hit the desired uptime, dependencies need to have even higher availability. The formula \( A = U^N \) shows that if your application’s target uptime is 99.9% and it has 7 dependencies, each dependency must have an uptime of 99.99% to meet that target.🛠️HackHub: Best Tools for Cloudsorintlab/stolonStolon is a cloud-native tool designed to manage PostgreSQL databases with high availability, making it suitable for deployment in various environments including Kubernetes and traditional infrastructures. It leverages PostgreSQL's streaming replication and integrates with cluster stores like etcd, Consul, or Kubernetes for leader election and data storage.keel-hq/keelKeel is a lightweight tool for automating updates to Kubernetes deployments without needing complex command-line interfaces or APIs. It integrates directly with Kubernetes and Helm, using labels and annotations to manage updates based on semantic versioning policies.apecloud/kubeblocksKubeBlocks is an open-source tool designed to simplify the management of multiple database types on Kubernetes using a unified set of APIs. Instead of dealing with different operators for each database, KubeBlocks provides a single control plane to manage various databases such as PostgreSQL, Redis, and Kafka. It offers a standardized approach to database lifecycle management, day-2 operations, and observability, with support for backup, recovery, and monitoring.caicloud/cycloneCyclone is a workflow engine built for Kubernetes that manages end-to-end pipelines without requiring extra dependencies. It operates across various Kubernetes environments, including public, private, and hybrid clouds. Cyclone offers features like DAG graph scheduling, flexible parameterization, and integration with external systems. It supports triggers, multi-cluster execution, multi-tenancy, and automatic resource cleanup.splunk/qbecQbec is a CLI tool designed for managing Kubernetes objects across multiple clusters or namespaces using jsonnet, a data-templating language. It simplifies Kubernetes configuration management by allowing users to define and deploy objects in various environments efficiently. Qbec is similar to tools like kubecfg and ksonnet.📢 If your company is interested in reaching an audience of developers and, technical professionals, and decision makers, you may want toadvertise with us.If you have any comments or feedback, just reply back to this email.Thanks for reading and have a great day!*{box-sizing:border-box}body{margin:0;padding:0}a[x-apple-data-detectors]{color:inherit!important;text-decoration:inherit!important}#MessageViewBody a{color:inherit;text-decoration:none}p{line-height:inherit}.desktop_hide,.desktop_hide table{mso-hide:all;display:none;max-height:0;overflow:hidden}.image_block img+div{display:none}sub,sup{font-size:75%;line-height:0} @media (max-width: 100%;display:block}.mobile_hide{min-height:0;max-height:0;max-width: 100%;overflow:hidden;font-size:0}.desktop_hide,.desktop_hide table{display:table!important;max-height:none!important}.reverse{display:table;width: 100%;
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Shreyans from Packt
01 Nov 2024
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A hard look at GuardDuty shortcomings

Shreyans from Packt
01 Nov 2024
Cloudflare adopted OpenTelemetry for logging pipeline CloudPro #71: A hard look at GuardDuty shortcomings ⭐Masterclass: From Docker Compose to Kubernetes Manifests A hard look at GuardDuty shortcomings Streamlining Keycloak in Kubernetes The hater’s guide to Kubernetes A skeptic's first contact with Kubernetes 🔍Secret Knowledge: Enhancing Bitnami Helm Charts Security Cloudflare adopted OpenTelemetry for logging pipeline Josh Grose on LinkedIn: I spent the last 3 yrs outside of observability Did you know the CNCF has an actual cookbook? Not metaphorically! Unfashionably secure: why we use isolated VMs 🛠️HackHub: Best Tools for the Cloud Web tool for database management The devs are over here at devzat, chat over SSH! CloudFormation_To_Terraform Debugging tool for Kubernetes which tests and displays connectivity between nodes in the cluster. Kubernetes network solution Cheers, Shreyans Singh Editor-in-Chief Forward to a Friend 🔍Secret Knowledge: Learning Resources Related Titles Enhancing Bitnami Helm Charts Security Bitnami enhanced the security of its Helm charts using Kubescape, an open-source Kubernetes security tool that identifies misconfigurations by comparing configurations to industry best practices. By integrating Kubescape into their build pipelines, Bitnami made significant improvements such as eliminating group root dependencies, configuring immutable filesystems, and reducing misconfigured resources. Cloudflare adopted OpenTelemetry for logging pipeline Cloudflare recently transitioned its logging pipeline from syslog-ng to OpenTelemetry Collector to enhance performance, maintainability, and telemetry insights. This move allowed the team to leverage Go, a language more familiar to their engineers, and integrate better observability through Prometheus metrics. Despite challenges like minimizing downtime during the switch and ensuring compatibility with existing infrastructure, the migration has opened up opportunities for further improvements, such as better log sampling and migration to the OpenTelemetry Protocol (OTLP). Josh Grose on LinkedIn: I spent the last 3 yrs outside of observability Josh Grose (ex-Principal PM, Splunk), after three years away from the observability space, was surprised to find that despite companies spending around 30% of their cloud budgets on monitoring, reliability hasn't improved significantly. He observed that even when Service Level Agreements (SLAs) are met, it often comes at the cost of developer productivity and experience. Engineering leaders are frustrated with the high costs and limited improvements in key metrics like Mean Time to Recovery (MTTR) and development speed, leading to the perception that observability has become an expensive and ineffective necessity. Did you know the CNCF has an actual cookbook? Not metaphorically! The "Cloud Native Community Cookbook" is a unique collection of recipes put together by the CNCF and Equinix Metal, born out of the increased time people spent at home during the COVID-19 pandemic. Instead of focusing on cloud technologies, this cookbook brings together food recipes shared by members of the Cloud Native community, originally exchanged in Equinix Metal's Slack channel. Unfashionably secure: why we use isolated VMs While modern cloud architectures often favor shared, multi-tenant environments for efficiency and scalability, Thinkst Canary opts for a less trendy but highly secure approach by using isolated virtual machines (VMs) for each customer. This choice prioritizes security by ensuring that each customer's data and services are completely separated, reducing the risk of cross-customer data breaches. Although this method comes with higher operational costs and complexity, it provides a stronger security boundary, making it easier to manage risks and sleep better at night. ⚡TechWave: Cloud News & Analysis How Figma Migrated onto K8s in Less Than 12 months Figma completed its migration to Kubernetes in under a year by meticulously planning and executing a well-scoped transition. Initially running services on AWS's ECS, Figma faced limitations such as complex stateful workloads and limited auto-scaling. The decision to move to Kubernetes (EKS) was driven by its broader functionality, including support for StatefulSets, Helm charts, and advanced scaling options from the CNCF ecosystem. By Q1 2024, Figma had migrated most core services with minimal impact on users, resulting in enhanced reliability, reduced costs, and a more flexible compute platform. Github Copilot Autofix: Secure code 3x faster Copilot Autofix, now available in GitHub Advanced Security, is an AI-powered tool designed to help developers fix code vulnerabilities more than three times faster than manual methods. It analyzes vulnerabilities, explains their significance, and offers code suggestions for quick remediation. This accelerates the fixing process for both new vulnerabilities and existing security debt, significantly reducing the time and effort required for secure coding. Copilot Autofix is included by default for GHAS customers and also available for open source projects starting in September. New Kubernetes CPUManager Static Policy: Distribute CPUs Across Cores Kubernetes v1.31 introduces a new alpha feature called "distribute-cpus-across-cores" for the CPUManager's static policy. This option aims to enhance performance by spreading CPUs more evenly across physical cores, rather than clustering them on fewer cores. This reduces contention and resource sharing between CPUs on the same core, which can boost performance for CPU-intensive applications. To use this feature, users need to adjust their Kubernetes configuration to enable it. Currently, it cannot be combined with other CPUManager options, but future updates will address this limitation. Announcing mandatory multi-factor authentication for Azure sign-in Microsoft is making multi-factor authentication (MFA) mandatory for all Azure sign-ins to enhance security and protect against cyberattacks. Starting in the latter half of 2024, Azure users will need to use MFA to access the Azure portal and admin centers, with broader enforcement for other Azure tools like CLI and PowerShell set for early 2025. MFA, which adds an extra layer of security by requiring more than just a password, is shown to block over 99% of account compromises. GitHub scales on demand with Azure Functions GitHub faced scalability issues with its internal data pipeline, which struggled to handle the massive amount of data it collects daily. To address this, GitHub partnered with Microsoft to use Azure Functions' new Flex Consumption plan, which allows serverless functions to scale dynamically based on demand. This solution has enabled GitHub to efficiently process up to 1.6 million events per second, addressing their growth challenges and improving performance with minimal overhead. 🛠️HackHub: Best Tools for Cloud commandprompt/pgmanage PgManage is a modern graphical database client for PostgreSQL, focusing on management features and built on the now-dormant OmniDB project. quackduck/devzat Devzat is a chat service accessible via SSH that replaces the traditional shell prompt with a chat interface, allowing you to connect from any device with SSH capabilities. aperswal/CloudFormation_To_Terraform The CloudFormation to Terraform Converter is a tool that automates the migration of AWS CloudFormation templates to Terraform configuration files. bloomberg/goldpinger Goldpinger monitors Kubernetes networking by making calls between its instances and providing Prometheus metrics for visualization and alerts. ZTE/Knitter Knitter is a Kubernetes CNI plugin that supports multiple network interfaces for pods, allowing custom network configurations across various cloud environments. 📢 If your company is interested in reaching an audience of developers and, technical professionals, and decision makers, you may want toadvertise with us. If you have any comments or feedback, just reply back to this email. Thanks for reading and have a great day! *{box-sizing:border-box}body{margin:0;padding:0}a[x-apple-data-detectors]{color:inherit!important;text-decoration:inherit!important}#MessageViewBody a{color:inherit;text-decoration:none}p{line-height:inherit}.desktop_hide,.desktop_hide table{mso-hide:all;display:none;max-height:0;overflow:hidden}.image_block img+div{display:none}sub,sup{font-size:75%;line-height:0} @media (max-width: 100%;display:block}.mobile_hide{min-height:0;max-height:0;max-width: 100%;overflow:hidden;font-size:0}.desktop_hide,.desktop_hide table{display:table!important;max-height:none!important}}
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Shreyans from Packt
25 Oct 2024
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Building Lightweight Kubernetes Dev Ephemeral Environments

Shreyans from Packt
25 Oct 2024
EC2 Image Builder now supports building and testing macOS imagesCloudPro #70: Building Lightweight Kubernetes Dev Ephemeral EnvironmentsOur Exclusive 2-for-1 Sale is LIVE!For the next 24 hours only, you can secure 2 seats for the price of 1 at Generative AI in Action (Nov 11-13)!📅 Sale ends tomorrow at 10 AM ETBring a colleague, friend, or your team and dive into everything this conference has to offer—from expert insights and hands-on sessions to valuable networking opportunities.Act now. This deal won’t last long!⏳Today we will talk about:⭐MasterclassBuilding Lightweight Kubernetes Dev Ephemeral EnvironmentsFrom which Kubernetes pod (and namespace!) is this process that I see on my host?Argo Workflows: Simplify parallel jobs: Container-native workflow engine for KubernetesUsing SimKube 1.0: Comparing Kubernetes Cluster Autoscaler and KarpenterI've joined a company that has an AKS cluster whose version is completely outdated (1.21). I need to upgrade it to version 1.30 without any downtime and have a rollback plan in place🔍Secret KnowledgeLike Heroku, but You Own ItMulti-Metric ScalingGoran Opacic on X: "After years of using @awscloud Aurora, we are moving back to dedicated hardware. MySQL K8s operators are great, storage is cheap, memory is cheap, cpu is cheap, I can run 5.7 as much as I like and no AI. I'll miss database cloning and instant read replicasPolicy as Code in TerraformBehind the scenes of the OpenTelemetry Governance Committee⚡TechwaveEC2 Image Builder now supports building and testing macOS imagesUpgraded Claude 3.5 Sonnet from Anthropic (available now), computer use (public beta), and Claude 3.5 Haiku (coming soon) in Amazon BedrockGrafana 11.3 release: Scenes-powered dashboards, visualization and panel updates, and moreSonar Details OpenAPI Generator Flaw That Creates Source Code VulnerabilityHashiCorp Updates Terraform; Wider Cloud Infrastructure Developer Toolsets🛠️Hackhubkubectl-guard: Accidentally modifying production instead of a local cluster? kubectl-guard helps prevent such critical mistakes.kubesafe: Safely manage multiple Kubernetes clusters by defining safe contexts and protected commands.Tfreveal:An open-source tool that enhances Terraform plan visibility by showing all resource and output differences, including sensitive values.SyncLite:A low-code platform for relational data consolidation, ideal for building data-intensive apps across edge, desktop, and mobile environments.pg_replicateCheers,Shreyans SinghEditor-in-Chief⭐MasterClass: Tutorials & GuidesBuilding Lightweight Kubernetes Dev Ephemeral EnvironmentsKardinal is an open-source tool for creating lightweight, temporary development environments on Kubernetes clusters. It’s designed to minimize resource usage by deploying only the services you need for testing while reusing existing resources when possible. Kardinal introduces “flows”—ephemeral environments that can be spun up for specific features or testing needs, which saves time and costs by avoiding redundant deployments.From which Kubernetes pod (and namespace!) is this process that I see on my host?To find which Kubernetes pod and namespace a process on your host belongs to, you can use crictl along with cgroups. First, get the process ID (PID) of the containerized process, then find its cgroup ID, which will contain the container’s unique identifier. Once you have that ID, use crictl inspect with a formatted output to get the pod’s namespace and name. This retrieves both the namespace and pod name directly from crictl using go-template formatting.Argo Workflows: Simplify parallel jobs: Container-native workflow engine for KubernetesIn this guide, the focus is on Argo Workflows, an open-source tool designed to manage complex workflows in Kubernetes environments by orchestrating parallel tasks in containers. Each step of a workflow is run within a container, making it ideal for complex pipelines like data processing or machine learning. Argo Workflows integrates with Kubernetes services (e.g., volumes, secrets, and RBAC) and uses Directed Acyclic Graphs (DAGs) to sequence tasks. This setup explains deploying Argo on Amazon EKS and integrating it with Argo Events to handle data-driven tasks triggered by messages from Amazon SQS, creating a scalable, event-driven Spark job processing platform on Kubernetes.Using SimKube 1.0: Comparing Kubernetes Cluster Autoscaler and KarpenterSimKube 1.0, a Kubernetes simulator, was used to test two popular cluster autoscaling solutions: Kubernetes Cluster Autoscaler (KCA) and Karpenter. Both tools add nodes to a Kubernetes cluster based on workload demands, but they differ significantly in approach. KCA, originally designed for homogeneous clusters, must be configured with specific instance types, which can make it slower when there are many options. Conversely, Karpenter, designed by AWS, optimizes across all available EC2 instances by default and uses both a "fast" loop for quick scheduling and a "slow" loop for optimization, which made it faster in this simulation.I've joined a company that has an AKS cluster whose version is completely outdated (1.21). I need to upgrade it to version 1.30 without any downtime and have a rollback plan in placeUpgrading an outdated AKS cluster from version 1.21 to 1.30 without downtime requires a careful approach, especially since rolling back AKS upgrades isn't possible. A Blue-Green deployment is a good option here but is complex at the cluster level. One way to approach it is to create a new cluster with AKS version 1.30, deploy and test the application there, and then redirect production traffic to the new cluster via DNS or load balancer once confirmed stable. First, validate the application’s compatibility with version 1.30 in your QA environment and ensure no critical API changes break functionality. If creating a new cluster is challenging due to resource limitations, consider a controlled maintenance window with a staged upgrade (e.g., from 1.21 to 1.22, then to 1.24, and so on) but remember that the direct upgrade might carry risks due to skipped deprecation changes and other breaking updates.🔍Secret Knowledge: Learning ResourcesLike Heroku, but You Own ItDokku is an open-source platform as a service (PaaS) that lets you turn a virtual private server (VPS) into a serverless platform, similar to Heroku, but with more control and no subscription costs. It allows easy deployment of web apps using Docker containers, GitHub Actions, or simple git commands. With features like auto-scaling, built-in SSL from Let’s Encrypt, and password protection, Dokku is ideal for hosting both applications and static sites from private repositories. Additionally, it offers flexible deployment options and can integrate with Cloudflare for HTTPS if needed, making it a powerful, budget-friendly solution for personal or small-scale app hosting.Multi-Metric ScalingYelp has implemented multi-metric autoscaling on its PaaSTA platform, enabling services to scale based on multiple factors (like CPU and request load) rather than just one, improving stability and quicker recovery during high-demand periods. Since PaaSTA is an 11-year-old platform on Kubernetes, updating it safely was challenging. The team spent weeks understanding the codebase, gathering input, and defining a clear, gradual update plan. They used snapshot testing and strict validation to confirm stability at each step, made minimal yet crucial API adjustments, and improved monitoring through Grafana. Ultimately, the update rolled out smoothly, enhancing scaling options without causing any service interruptions.Goran Opacic on X: "After years of using @awscloud Aurora, we are moving back to dedicated hardware. MySQL K8s operators are great, storage is cheap, memory is cheap, cpu is cheap, I can run 5.7 as much as I like and no AI. I'll miss database cloning and instant read replicasPolicy as Code in TerraformPolicy as Code (PaC) allows organizations to enforce rules and guidelines on infrastructure automatically by defining policies as code, ensuring resources meet security, compliance, and operational standards. Tools like HashiCorp Sentinel and Open Policy Agent (OPA) are popular frameworks for PaC, working with infrastructure as code (IaC) tools like Terraform. Unlike traditional IaC, which configures infrastructure, PaC sets up policy rules that are enforced whenever infrastructure changes are proposed. This approach helps maintain a secure, compliant cloud environment by preventing risky configurations.Behind the scenes of the OpenTelemetry Governance CommitteeThe OpenTelemetry Governance Committee (GC) guides the OpenTelemetry project strategically, ensuring its growth as a vendor-neutral observability framework. While the Technical Committee (TC) focuses on technical aspects, the GC's role includes setting project goals, updating policies, and overseeing SIG (Special Interest Group) sponsorships, ensuring alignment with community needs. GC members also represent OpenTelemetry at events, mediate conflicts, and check in with SIG maintainers to address challenges and gather feedback.⚡TechWave: Cloud News & AnalysisEC2 Image Builder now supports building and testing macOS imagesAWS EC2 Image Builder now supports creating macOS images, enabling users to streamline their image management and automate the creation of "golden images" (customized bootable OS images) for macOS in addition to Windows and Linux. This is particularly helpful for developers using macOS tools like Xcode and Fastlane, which are essential in CI/CD pipelines. With Image Builder, users can create components for specific tools, define a recipe for a base macOS image, configure infrastructure (like EC2 Mac Dedicated Hosts), and set up pipelines that automatically test and validate each image.Upgraded Claude 3.5 Sonnet from Anthropic (available now), computer use (public beta), and Claude 3.5 Haiku (coming soon) in Amazon BedrockAnthropic's latest updates to the Claude 3.5 model family in Amazon Bedrock include an upgraded Claude 3.5 Sonnet, which enhances the model’s ability to handle complex software engineering tasks, knowledge-based Q&A, data extraction, and task automation at the same cost as previous versions. Additionally, a new "computer use" feature, available in public beta, allows Claude 3.5 Sonnet to interact with computer interfaces, like opening applications, typing, and clicking, opening up possibilities for AI-driven automation in software testing and administrative workflows. Lastly, the upcoming Claude 3.5 Haiku will offer faster response times paired with strong reasoning abilities, ideal for applications requiring both speed and intelligence, such as customer service and data processing in sectors like finance and healthcare.Grafana 11.3 release: Scenes-powered dashboards, visualization and panel updates, and moreGrafana 11.3 introduces a range of new features and improvements, with a highlight on the new Scenes-powered dashboards, enhancing stability, flexibility, and organization of dashboard elements. This release also includes visual and functional updates, like a redesigned inspect feature for table cells, enabling quick data analysis, and the new "Actions" option, allowing users to trigger API calls directly from elements on canvas panels. The update further enhances alerting with simplified rule creation and RBAC for notifications, and Explore Logs is now a default feature, making log troubleshooting more accessible.Sonar Details OpenAPI Generator Flaw That Creates Source Code VulnerabilitySonar recently identified a vulnerability in the OpenAPI Generator, a popular tool for creating API libraries, that could allow attackers to read or delete files in certain directories. Although a patch has been released, many existing APIs built with older, unpatched versions might still be at risk, requiring DevSecOps teams to locate and update them. This vulnerability underscores the challenge of detecting security flaws in auto-generated code, where developers may be less involved in the underlying code creation process. With cybercriminals actively searching for such vulnerabilities, DevSecOps teams must prioritize remediating high-risk code while balancing limited resources.HashiCorp Updates Terraform; Wider Cloud Infrastructure Developer ToolsetsHashiCorp, now under IBM's ownership, announced significant updates to Terraform at HashiConf, focusing on streamlining multi-cloud infrastructure management. Terraform's new "stacks" feature allows developers to manage complex, interdependent infrastructure configurations, making it easier to scale and control cloud resources across multiple environments. Additionally, HCP Waypoint provides a structured portal for internal development, using templates to standardize application deployment and updates. Other enhancements include new lifecycle management capabilities for HCP Vault, GPU resource sharing in Nomad, and an automation tool for migrating Terraform workflows, all designed to optimize and automate infrastructure in an increasingly complex cloud landscape.🛠️HackHub: Best Tools for Cloudkubectl-guard: Accidentally modifying production instead of a local cluster? kubectl-guard helps prevent such critical mistakes.To set up *kubectl-guard*, first create a file named *kubectl-guard* for the script, then make it executable by running `chmod +x kubectl-guard`. Next, open your shell configuration file (e.g., `~/.zshrc`) in a text editor, and add an alias with the command `alias kubectl='full-path-to/kubectl-guard'`, replacing "full-path-to" with the actual path where the script is saved. Save and close the file, then restart your terminal session for changes to take effect. This setup will help ensure safety by requiring the production cluster name to include "prod," though you can adjust this by modifying the `PROD_IDENTIFIER` variable.kubesafe: Safely manage multiple Kubernetes clusters by defining safe contexts and protected commands.*Kubesafe* is a tool designed to help you avoid running risky commands on the wrong Kubernetes cluster by marking certain contexts as "safe" and defining commands that need confirmation before execution. It works with any Kubernetes CLI tool (like `kubectl` or `helm`) by wrapping the command to add this layer of protection. For instance, running `kubesafe kubectl delete pod my-pod` will prompt for confirmation if the context is marked as protected. You can set up aliases, such as `alias kubectl='kubesafe kubectl'`, to automatically use Kubesafe each time you run a command.Tfreveal:An open-source tool that enhances Terraform plan visibility by showing all resource and output differences, including sensitive values.*tfreveal* is an open-source tool that lets you see all changes, including sensitive values, in Terraform plan files, enhancing transparency in infrastructure updates. While Terraform hides sensitive data by default, tfreveal unearths these details, which is particularly useful for detecting drift between Terraform state and actual infrastructure. Typically, sensitive data can only be viewed through complex JSON outputs, making it hard to read, especially when changes are in large encoded values. tfreveal simplifies this by displaying clear diffs, showing all values. To use, generate a plan file with `terraform plan -out plan.out`, then pipe it to tfreveal via `terraform show -json plan.out | tfreveal`.SyncLite:A low-code platform for relational data consolidation, ideal for building data-intensive apps across edge, desktop, and mobile environments.SyncLite is an open-source, low-code platform for creating data-intensive applications that seamlessly consolidate and synchronize data across edge, desktop, and mobile environments. It supports real-time, transactional data replication from various sources, like embedded databases (e.g., SQLite, DuckDB) and IoT message brokers, and integrates with popular data destinations, such as databases, data warehouses, and data lakes.pg_replicate`pg_replicate` is a Rust library designed to help developers quickly set up data replication from PostgreSQL to various data systems. It simplifies the use of PostgreSQL’s logical streaming replication protocol, letting users focus on building data pipelines without dealing with protocol details. To get started, users create a PostgreSQL publication, run the stdout example to replicate data to standard output, and connect using simple commands.📢 If your company is interested in reaching an audience of developers and, technical professionals, and decision makers, you may want toadvertise with us.If you have any comments or feedback, just reply back to this email.Thanks for reading and have a great day!*{box-sizing:border-box}body{margin:0;padding:0}a[x-apple-data-detectors]{color:inherit!important;text-decoration:inherit!important}#MessageViewBody a{color:inherit;text-decoration:none}p{line-height:inherit}.desktop_hide,.desktop_hide table{mso-hide:all;display:none;max-height:0;overflow:hidden}.image_block img+div{display:none}sub,sup{font-size:75%;line-height:0} @media (max-width: 100%;display:block}.mobile_hide{min-height:0;max-height:0;max-width: 100%;overflow:hidden;font-size:0}.desktop_hide,.desktop_hide table{display:table!important;max-height:none!important}}
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