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AWS Administration - The Definitive Guide
AWS Administration - The Definitive Guide

AWS Administration - The Definitive Guide: Design, build, and manage your infrastructure on Amazon Web Services , Second Edition

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AWS Administration - The Definitive Guide

Managing EC2 with Systems Manager

EC2 instances have long been a core service provided by AWS and EC2 still continues to evolve with newer sets of features and instance types added every year. One such really awesome service added during AWS re:Invent 2016 was the EC2 Systems Manager!

In this chapter, we will be learning a lot about the EC2 Systems Manager and its associated sub-services; namely:

  • Run Command: Service that allows you to execute commands directly on an EC2 Systems Manager enabled EC2 instance
  • State Manager: Allows you to specify a desired state for an EC2 Systems Manager enabled EC2 instance
  • Patch management: Provides administrators with the ability to manage the deployment of patches over EC2 instances
  • Automations: Allows administrators to automate the deployment of certain tasks
  • Inventory: Service that collects and manages a list of software inventory from your...

Introducing EC2 Systems Manager

As the name suggests, EC2 Systems Manager is a management service that provides administrators and end users with the ability to perform a rich set of tasks on their EC2 instance fleet such as periodically patching the instances with a predefined set of baseline patches, tracking the instances' configurational state, and ensuring that the instance stays compliant with a state template, runs scripts and commands over your instance fleet with a single utility, and much, much more! The EC2 Systems Manager is also specifically designed to help administrators manage hybrid computing environments, all from the comfort and ease of the EC2 Systems Manager dashboard. This makes it super efficient and cost effective as it doesn't require a specialized set of software or third-party services, which cost a fortune, to manage your hybrid environments...

Getting started with the SSM agent

In this section, we are going to install and configure an SSM agent on a new Linux instance, which we shall call as a Dev instance, and then verify it's working by streaming the agent's log files to Amazon CloudWatch Logs. So let's get busy!

Configuring IAM Roles and policies for SSM

First, we need to create and configure IAM Roles for our EC2 Systems Manager to process and execute commands over our EC2 instances. You can either use the Systems Manager's managed policies or alternatively create your own custom roles with specific permissions. For this part, we will be creating a custom role and policy.

To get started, we first create a custom IAM policy for Systems Manager...

Introducing Run Command

Run Command is an awesome feature of Systems Manager, which basically allows you to execute remote commands over your managed fleet of EC2 instances. You can perform a vast variety of automated administrative tasks, such as installing software or patching your operating systems, executing shell commands, managing local groups and users, and much more! But that's not all! The best part of using this feature is that it allows you to have a seamless experience when executing scripts, even over your on-premises Windows and Linux operating systems, whether they be running on VMware ESXi, Microsoft Hyper-V, or any other platforms. And the cost of all this? Well, it's absolutely free! You only pay for the EC2 instances and other AWS resources that you create and nothing more!

Here's a brief list of a few commonly predefined commands provided by...

Working with State Manager

State Manager is a powerful tool that helps to govern and manage the configuration of a managed system. For example, by using State Manager you can enforce a particular firewall rule for your fleet of managed instances and set that as the required State that needs to be enforced at all times. If the rules change outside of State Manager, it will automatically revert to match the required state's configuration, thus maintaining compliance and enforcing standardization over your environment.

Working with State Manager is quite simple and straightforward. You start off by selecting a state document (JSON based) that specifies the settings you need to configure or maintain your EC2 instances. These documents come predefined and you can create customized versions of them. With the document created, you can then select the individual managed instances...

Simplifying instance maintenance using System Manager Automation

System Manager Automation is a managed service that provides a single, centralized interface for executing and monitoring commonly occurring instance management tasks such as patching, performing backups, executing scripts, and much more. Let's first get started by understanding a few necessary prerequisites that are required to be configured in order for automation to work in your environments.

Working with automation documents

As discussed briefly during the introduction to the State Manager service, automation documents are simple JSON-based documents that are designed to help you get started with the automation service quickly and efficiently. You can...

Managing instance patches using patch baseline and compliance

Regularly patching your instances with the right set of security patches is an important activity that can take up a lot of time and effort if performed manually on each individual instance. Luckily, AWS provides a really efficient and easy way of automating the patching of your managed instances using the concept of Patch Manager services, provided as an out-of-the-box capability with SSM.

As an administrator, all you need to do is scan your instances for missing patches and leverage Patch Manager to automatically remediate the issues by installing the required set of patches. You can, alternatively, even schedule the patching of your managed instance or group of instances with the help of SSM's maintenance window tasks.

In this section, we will explore a quick and easy way of creating a unique patch baseline...

Getting started with Inventory Management

Inventory Management or just Inventory is yet another managed service provided by Systems Manager that is responsible for collecting operating system, application, and instance metadata from your AWS instances as well as those present and managed by Systems Manager in your on-premises environments. You can use this service to query the inventory metadata for mapping, understanding, and remediating EC2 instances based on certain software or regulatory compliances.

Let's look at a very simple example of enabling the inventory service for our Dev instance using the AWS Management dashboard:

  1. To begin with, you will require both the SSM agent as well as the required IAM Roles configured on your managed instance. Once this is completed, select the Managed Instances option from the Systems Manager Shared Resources section.
  2. Here...

Introducing EC2 Systems Manager


As the name suggests, EC2 Systems Manager is a management service that provides administrators and end users with the ability to perform a rich set of tasks on their EC2 instance fleet such as periodically patching the instances with a predefined set of baseline patches, tracking the instances' configurational state, and ensuring that the instance stays compliant with a state template, runs scripts and commands over your instance fleet with a single utility, and much, much more! The EC2 Systems Manager is also specifically designed to help administrators manage hybrid computing environments, all from the comfort and ease of the EC2 Systems Manager dashboard. This makes it super efficient and cost effective as it doesn't require a specialized set of software or third-party services, which cost a fortune, to manage your hybrid environments!

But how does AWS achieve all of this in the first place? Well, it all begins with the concept of managed instances. A managed...

Getting started with the SSM agent


In this section, we are going to install and configure an SSM agent on a new Linux instance, which we shall call as a Dev instance, and then verify it's working by streaming the agent's log files to Amazon CloudWatch Logs. So let's get busy!

Configuring IAM Roles and policies for SSM

First, we need to create and configure IAM Roles for our EC2 Systems Manager to process and execute commands over our EC2 instances. You can either use the Systems Manager's managed policies or alternatively create your own custom roles with specific permissions. For this part, we will be creating a custom role and policy.

To get started, we first create a custom IAM policy for Systems Manager managed instances:

  1. Log in to your AWS account and select the IAM option from the main dashboard, or alternatively, open the IAM console at https://console.aws.amazon.com/iam/.
  2. Next, from the navigation pane, select Policies. This will bring up a list of existing policies currently provided...
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Key benefits

  • •Learn how to leverage various Amazon Web Services (AWS) components and services to build a secure, reliable, and robust environment to host your applications on.
  • •Delve into core AWS service offerings with hands-on tutorials, real-world use case scenarios, and best practices.
  • •A self-paced, systematic, and step-by-step guide to learning and implementing AWS in your own environment.

Description

Many businesses are moving from traditional data centers to AWS because of its reliability, vast service offerings, lower costs, and high rate of innovation. AWS can be used to accomplish a variety of both simple and tedious tasks. Whether you are a seasoned system admin or a rookie, this book will help you to learn all the skills you need to work with the AWS cloud. This book guides you through some of the most popular AWS services, such as EC2, Elastic Beanstalk, EFS, CloudTrail, Redshift, EMR, Data Pipeline, and IoT using a simple, real-world, application-hosting example. This book will also enhance your application delivery skills with the latest AWS services, such as CodeCommit, CodeDeploy, and CodePipeline, to provide continuous delivery and deployment, while also securing and monitoring your environment's workflow. Each chapter is designed to provide you with maximal information about each AWS service, coupled with easy to follow, hands-on steps, best practices, tips, and recommendations. By the end of the book, you will be able to create a highly secure, fault-tolerant, and scalable environment for your applications to run on.

Who is this book for?

This book is for those who want to learn and leverage the rich plethora of services provided by AWS. Although no prior experience with AWS is required, it is recommended that you have some hands-on experience of Linux, Web Services, and basic networking.

What you will learn

  • • Take an in-depth look at what s new with AWS, along with how to effectively manage and automate your EC2 infrastructure with AWS Systems Manager
  • • Deploy and scale your applications with ease using AWS Elastic Beanstalk and Amazon Elastic File System
  • • Secure and govern your environments using AWS CloudTrail, AWS Config, and AWS Shield
  • • Learn the DevOps way using a combination of AWS CodeCommit, AWS CodeDeploy, and AWS
  • CodePipeline
  • • Run big data analytics and workloads using Amazon EMR and Amazon Redshift
  • • Learn to back up and safeguard your data using AWS Data Pipeline
  • • Get started with the Internet of Things using AWS IoT and AWS Greengrass
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Publication date, Length, Edition, Language, ISBN-13
Publication date : Mar 23, 2018
Length: 358 pages
Edition : 2nd
Language : English
ISBN-13 : 9781788478793
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Table of Contents

12 Chapters
What's New in AWS? Chevron down icon Chevron up icon
Managing EC2 with Systems Manager Chevron down icon Chevron up icon
Introducing Elastic Beanstalk and Elastic File System Chevron down icon Chevron up icon
Securing Workloads Using AWS WAF Chevron down icon Chevron up icon
Governing Your Environments Using AWS CloudTrail and AWS Config Chevron down icon Chevron up icon
Access Control Using AWS IAM and AWS Organizations Chevron down icon Chevron up icon
Transforming Application Development Using the AWS Code Suite Chevron down icon Chevron up icon
Messaging in the Cloud Using Amazon SNS and Amazon SQS Chevron down icon Chevron up icon
Powering Analytics Using Amazon EMR and Amazon Redshift Chevron down icon Chevron up icon
Orchestrating Data using AWS Data Pipeline Chevron down icon Chevron up icon
Connecting the World with AWS IoT and AWS Greengrass Chevron down icon Chevron up icon
Other Books You May Enjoy Chevron down icon Chevron up icon

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Not up to the mark... No details covered in any single topic chosen. Not explained in the order as well.
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