Book Image

Kubernetes – An Enterprise Guide - Second Edition

By : Marc Boorshtein, Scott Surovich
Book Image

Kubernetes – An Enterprise Guide - Second Edition

By: Marc Boorshtein, Scott Surovich

Overview of this book

Kubernetes has taken the world by storm, becoming the standard infrastructure for DevOps teams to develop, test, and run applications. With significant updates in each chapter, this revised edition will help you acquire the knowledge and tools required to integrate Kubernetes clusters in an enterprise environment. The book introduces you to Docker and Kubernetes fundamentals, including a review of basic Kubernetes objects. You’ll get to grips with containerization and understand its core functionalities such as creating ephemeral multinode clusters using KinD. The book has replaced PodSecurityPolicies (PSP) with OPA/Gatekeeper for PSP-like enforcement. You’ll integrate your container into a cloud platform and tools including MetalLB, externalDNS, OpenID connect (OIDC), Open Policy Agent (OPA), Falco, and Velero. After learning to deploy your core cluster, you’ll learn how to deploy Istio and how to deploy both monolithic applications and microservices into your service mesh. Finally, you will discover how to deploy an entire GitOps platform to Kubernetes using continuous integration and continuous delivery (CI/CD).
Table of Contents (17 chapters)
15
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16
Index

Managing Velero using the CLI

Right now, all Velero operations must be done using the Velero executable. Managing a backup system without a GUI can be a challenge at first, but once you get comfortable with the Velero management commands, it becomes easy to perform operations.

The Velero executable accepts two options:

  • Commands
  • Flags

A command is an operation such as backup, restore, install, and get. Most initial commands require a second command to make a complete operation. For example, a backup command requires another command, such as create or delete, to form a complete operation.

There are two types of flags – command flags and global flags. Global flags are flags that can be set for any command, while command flags are specific to the command being executed.

Like many CLI tools, Velero includes built-in help for every command. If you forget some syntax or want to know what flags can be used with a command, you can use the -h flag...