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Go for DevOps

You're reading from Go for DevOps Learn how to use the Go language to automate servers, the cloud, Kubernetes, GitHub, Packer, and Terraform

Product type Paperback

Published in Jul 2022

Publisher Packt

ISBN-13 9781801818896

Length 634 pages

Edition 1st Edition

Languages

Go

Tools

Docker

Concepts

DevOps

Authors (2):

John Doak

David Justice

View More author details

Table of Contents (22) Chapters

Preface

1. Section 1: Getting Up and Running with Go

2. Chapter 1: Go Language Basics FREE CHAPTER

3. Chapter 2: Go Language Essentials

4. Chapter 3: Setting Up Your Environment

5. Chapter 4: Filesystem Interactions

6. Chapter 5: Using Common Data Formats

7. Chapter 6: Interacting with Remote Data Sources

8. Chapter 7: Writing Command-Line Tooling

9. Chapter 8: Automating Command-Line Tasks

10. Section 2: Instrumenting, Observing, and Responding

11. Chapter 9: Observability with OpenTelemetry

12. Chapter 10: Automating Workflows with GitHub Actions

13. Chapter 11: Using ChatOps to Increase Efficiency

14. Section 3: Cloud ready Go

15. Chapter 12: Creating Immutable Infrastructure Using Packer

16. Chapter 13: Infrastructure as Code with Terraform

17. Chapter 14: Deploying and Building Applications in Kubernetes

18. Chapter 15: Programming the Cloud

19. Chapter 16: Designing for Chaos

20. Index

Why subscribe?

21. Other Books You May Enjoy

Chapter 7: Writing Command-Line Tooling

Visit any DevOps engineer and you will find their screens filled with terminals executing Command-Line Interface (CLI) applications.

As a DevOps engineer, we don't want to only use applications that others have made for us; we want to be able to write our own CLI applications. These applications might communicate to various systems via REST or gRPC, as we discussed in our previous chapter. Or you might want to execute various applications and run their output through custom processing. An application might even set up a development environment and kick off a test cycle for a new release.

Whatever your use case, you will need to use some common packages to help you manage the application's input and output processing.

In this chapter, you will learn how to use the flag and os packages to write simple CLI applications. For more complex applications, you will learn how to use the Cobra package. These skills, combined with the...

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Authors (2)

John Doak

John Doak

John Doak is the principal manager of Layer 1 Reliability Engineering at Microsoft. John led the development of the Azure Data Explorer and Microsoft Authentication Library Go SDKs. Previously, he was a Staff Site Reliability Engineer at Google. As part of network engineering, he created many of their first network automation systems. John led the migration of that group from Python to Go, developing Go training classes that have been taught around the world. He was a pivotal figure in transforming the network team to a network/systems group that integrated with SRE. Prior to that, he worked for Lucasfilm in video games and film. You can find his musings on Go/SRE topics and his Go classes on the web.

See other products by John Doak

David Justice

David Justice

David Justice is the Principal Software Engineer Lead for the Azure K8s Infrastructure and Steel Thread teams that maintain a variety of CNCF and Byte Code Alliance projects. He is a maintainer of Cluster API Provider Azure and contributor to Cluster API. Prior to that, David was the technical assistant to the Azure CTO where he was responsible for Azure cross-group technical strategy and architecture. Early on at Microsoft, he was a Program Manager leading Azure SDKs and CLIs where he transitioned all Azure services to describe themselves using OpenAPI specifications in GitHub, and established automations to generate Azure reference docs, SDKs, and CLIs. Prior to Microsoft, David was the CTO of a mobile CI/CD SaaS called CISimple

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