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HashiCorp Packer in Production

You're reading from   HashiCorp Packer in Production Efficiently manage sets of images for your digital transformation or cloud adoption journey

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Product type Paperback
Published in Jul 2023
Publisher Packt
ISBN-13 9781803246857
Length 190 pages
Edition 1st Edition
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Author (1):
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John Boero John Boero
Author Profile Icon John Boero
John Boero
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Table of Contents (18) Chapters Close

Preface 1. Part 1: Packer’s Beginnings
2. Chapter 1: Packer Fundamentals FREE CHAPTER 3. Chapter 2: Creating Your First Template 4. Chapter 3: Configuring Builders and Sources 5. Chapter 4: The Power of Provisioners 6. Chapter 5: Logging and Troubleshooting 7. Part 2: Managing Large Environments
8. Chapter 6: Working with Builders 9. Chapter 7: Building an Image Hierarchy 10. Chapter 8: Scaling Large Builds 11. Part 3: Advanced Customized Packer
12. Chapter 9: Managing the Image Lifecycle 13. Chapter 10: Using HCP Packer 14. Chapter 11: Automating Packer Builds 15. Chapter 12: Developing Packer Plugins 16. Index 17. Other Books You May Enjoy

Basics of Go

If you have never coded in Go before, I’ll try to sum it up for you without offending the Go experts. Go is an open source programming language from Google inspired by C and C++ but featuring memory protection and automatic management of memory for the stack and heap. As a coder, this means you don’t need to worry much about how you use memory but the Go runtime may take some extra time to rearrange or garbage-collect memory. Unlike scripting, it also means your code must have no syntax errors and compile successfully to build a binary. This includes strong static types and complete syntax during compilation. The good news is that performance and stability for Go are very good compared to scripting, which must be parsed and type-checked every time you run it. Go’s performance is occasionally affected by memory garbage collection performed by the runtime, which scripts must also do anyway.

Goroutines are a simple mechanism for concurrency via lightweight...

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