GitOps Cookbook. Kubernetes Automation in Practice

Foreword ixPreface xi1. Introduction....11.1 What Is GitOps?....11.2 Why GitOps?....21.3 Kubernetes CI/CD....31.4 App Deployment with GitOps on Kubernetes....41.5 DevOps and Agility....52. Requirements....72.1 Registering for a Container Registry....72.2 Registering for a Git Repository....92.3 Creating a Local Kubernetes Cluster....123. Containers....173.1 Building a Container Using Docker....183.2 Building a Container Using Dockerless Jib....233.3 Building a Container Using Buildah....273.4 Building a Container with Buildpacks....323.5 Building a Container Using Shipwright and kaniko in Kubernetes....353.6 Final Thoughts....424. Kustomize....434.1 Using Kustomize to Deploy Kubernetes Resources....444.2 Updating the Container Image in Kustomize....504.3 Updating Any Kubernetes Field in Kustomize....524.4 Deploying to Multiple Environments....574.5 Generating ConfigMaps in Kustomize....604.6 Final Thoughts....665. Helm....675.1 Creating a Helm Project....685.2 Reusing Statements Between Templates....755.3 Updating a Container Image in Helm....795.4 Packaging and Distributing a Helm Chart....825.5 Deploying a Chart from a Repository....845.6 Deploying a Chart with a Dependency....885.7 Triggering a Rolling Update Automatically....935.8 Final Thoughts....986. Cloud Native CI/CD....996.1 Install Tekton....1006.2 Create a Hello World Task....1076.3 Create a Task to Compile and Package an App from Git....1086.4 Create a Task to Compile and Package an App from Private Git....1146.5 Containerize an Application Using a Tekton Task and Buildah....1176.6 Deploy an Application to Kubernetes Using a Tekton Task....1226.7 Create a Tekton Pipeline to Build and Deploy an App to Kubernetes....1256.8 Using Tekton Triggers to Compile and Package an Application Automatically When a Change Occurs on Git....1356.9 Update a Kubernetes Resource Using Kustomize and Push the Change to Git....1396.10 Update a Kubernetes Resource Using Helm and Create a Pull Request....1446.11 Use Drone to Create a Pipeline for Kubernetes....1486.12 Use GitHub Actions for CI....1507. Argo CD....1557.1 Deploy an Application Using Argo CD....1567.2 Automatic Synchronization....1627.3 Kustomize Integration....1667.4 Helm Integration....1687.5 Image Updater....1717.6 Deploy from a Private Git Repository....1787.7 Order Kubernetes Manifests....1827.8 Define Synchronization Windows....1878. Advanced Topics....1918.1 Encrypt Sensitive Data (Sealed Secrets)....1928.2 Encrypt Secrets with ArgoCD (ArgoCD + HashiCorp Vault + External Secret)....1958.3 Trigger the Deployment of an Application Automatically (Argo CD Webhooks)....1988.4 Deploy to Multiple Clusters....2008.5 Deploy a Pull Request to a Cluster....2068.6 Use Advanced Deployment Techniques....208Index....217