| Description |
1 online resource (167 pages) |
| Note |
Table of ContentsPacker FundamentalsCreating your first ManifestConfiguring Builders and SourcesThe Power ProvisionerLogging and TroubleshootingWorking with Builders on the ManifestBuilding an Image HierarchySpeeding up with Parallel BuildsManaging Image LifecycleUsing HCP PackerAutomating Packer BuildsDeveloping Plugins. |
| Summary |
Set up automated workflows to keep systems and applications consistent globally, regardless of architecture, cloud, or container runtime Purchase of the print or Kindle book includes a free PDF eBook Key Features Automate building and modifying complex software images across multiple OSs and container engines Minimize cost by keeping your systems ready across multiple architectures, including ARM and future RISC-V processors Speed up your time to market by building and testing apps using upstream and future releases Book Description Creating machine images can be time-consuming and error-prone when done manually. HashiCorp Packer enables you to automate this process by defining the configuration in a simple, declarative syntax. This configuration is then used to create machine images for multiple environments and cloud providers. The book begins by showing you how to create your first manifest while helping you understand the available components. You'll then configure the most common built-in builder options for Packer and use runtime provisioners to reconfigure a source image for desired tasks. You'll also learn how to control logging for troubleshooting errors in complex builds and explore monitoring options for multiple logs at once. As you advance, you'll build on your initial manifest for a local application that'll easily migrate to another builder or cloud. The chapters also help you get to grips with basic container image options in different formats while scaling large builds in production. Finally, you'll develop a life cycle and retention policy for images, automate packer builds, and protect your production environment from nefarious plugins. By the end of this book, you'll be equipped to smoothen collaboration and reduce the risk of errors by creating machine images consistently and automatically based on your defined configuration. What you will learn Build and maintain consistent system images across multiple platforms Create machine images that can be used in multiple environments Write a spec for a local Packer virtual machine in JSON and HCL Build a container image with Packer in different formats Automate Packer with continuous delivery pipelines Discover how to customize Packer by writing plugins Who this book is for This book is for DevOps engineers, Cloud engineers, and teams responsible for maintaining platform and application images for enterprise private, hybrid, or multi-cloud environments. Familiarity with operating systems and virtualization concepts, with or without using a cloud provider, is a prerequisite. |
| Contents |
Cover -- Title Page -- Copyright and Credit -- Dedicated -- Foreword -- Contributors -- Table of Contents -- Preface -- Part 1: Packer's Beginnings -- Chapter 1: Packer Fundamentals -- Technical requirements -- Packer architecture -- History of Packer -- Who uses Packer? -- Alternatives to Packer -- Installing Packer -- HCL versus JSON -- Example legacy JSON -- Example PKR.JSON -- Example HCL -- Summary -- Chapter 2: Creating Your First Template -- Technical requirements -- Hello World template for a local VM -- Breakdown of components, variables, and artifacts |
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Using an IDE to guide templates -- Applying the VirtualBox builder -- Summary -- Chapter 3: Configuring Builders and Sources -- Technical requirements -- Simplifying your template with variables -- Utilizing local system builders -- Using VirtualBox builders -- ISO, OVF, and VM -- Using VMware builders -- ISO, VMX, and vSphere clone -- Using the QEMU builder -- Adding cloud builders -- Providing your cloud credentials -- Using the AWS builders -- Using the Azure builders -- Using the GCP builders -- Exploring other cloud builders -- Building containers -- Using the null builder -- Summary |
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Chapter 4: The Power of Provisioners -- Technical requirements -- Configuring communicators -- Injecting your config or artifacts -- Seeding a file or directory into your image once booted -- Using templates to populate configuration resources with variables -- Running a script or job across all builders -- Developing provisioners with the null builder -- Summary -- Chapter 5: Logging and Troubleshooting -- Technical requirements -- Managing stderr and stdout -- Using environment variables for logging and debugging -- Controlling flow and using breakpoints -- Summary |
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Part 2: Managing Large Environments -- Chapter 6: Working with Builders -- Technical requirements -- Adding applications deployable from vSphere -- Adding an AWS EC2 AMI build -- Using HashiCorp Vault for credentials -- Adding an Azure build -- Adding a Google GCP build -- Parallel builds -- CI testing against multiple OS releases -- Pitfalls and things to avoid -- Summary -- Chapter 7: Building an Image Hierarchy -- Technical requirements -- Starting with LXC/LXD images -- Docker container image format -- Podman plugin for the OCI container image format -- Base image strategy |
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Aggregation and branching out multiple pipelines -- Summary -- Chapter 8: Scaling Large Builds -- Technical requirements -- Speeding up your builds with parallel processes -- Preventing parallel processes from causing DoS -- Troubleshooting logs in a parallel world -- Using image compression -- Selecting a compression algorithm for Packer images -- Selecting the right storage type for the image lifecycle -- Building delta and patch strategies -- Summary -- Part 3: Advanced Customized Packer -- Chapter 9: Managing the Image Lifecycle -- Technical requirements -- Tracking image lifecycle |
| Subject |
Computer networks -- Management -- Computer programs.
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Cloud computing.
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Réseaux d'ordinateurs -- Gestion -- Logiciels. |
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Infonuagique. |
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Cloud computing |
| Added Author |
Dadgar, Armon, writer of supplementary textual content.
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| Other Form: |
Print version: 9781803246857 |
| ISBN |
9781803243849 ebook |
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1803243848 |
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paperback |
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