Kustomize Mastery: Manage Kubernetes Configuration with Ease

Explore the customization file and transformers to master kubernetes configuration, including secrets, config maps, prefixes, namespaces, labels, annotations, CRDs, patching, and a real-world customized workflow with GitHub actions.

Install customize as a standalone package to manage versions independently from Cube CTL. Explore macOS options with Homebrew or MacPorts, Docker images, and building from source.

Set up a Kubernetes cluster using Docker Desktop with its Kubernetes feature or a lightweight k3d installation, then create a two-node cluster for demos.

Explore the Kustomize customization file, a declarative YAML that applies transformations to base Kubernetes resources and generates resources. Understand the four lists—resources, generators, transformers, validators—and the hydration order.

Discover how Kustomize transformers modify Kubernetes manifests, using configuration files, inline settings, or convenience fields, and prefix resource names like V1 across bases and overlays.

Learn how kustomize generators create Kubernetes resources, including config map and secret generators, and control behavior, files, literals, generator options, and labels.

Learn to use config map generators in customize to create config maps from env files, literals, and files, apply them to deployments, and control hash behavior with generator options.

Explore secret generators in Kubernetes, similar to config map generators, creating opaque secrets with base64-encoded data for MySQL configuration, and verify them in a deployment.

Explore resources field usage: local paths or URLs, including remote repositories, and apply Hashicorp URL format with double slash syntax for remote bases.

Learn to manage kubernetes namespaces with kustomize by using the customization file's namespace convenience field and transformers, including onset only behavior to attach or preserve namespaces across resources.

Master how to manage labels and annotations with customize, using the labels key to update only resource labels and avoid changing selectors or templates that could cause downtime.

Master how to apply patches in customize using strategic merge and JSON patch, targeting resources by group version kind, namespace, and label or annotation selectors, with inline or file-based patches.

Master strategic merge patches in Kubernetes to patch resources, including inline or file patches, while using targets and directives, and letting customize create namespaces when needed.

Discover json6902 patches in kustomize to replace fields in Kubernetes manifests, targeting resources with path-based operations and optional json or yaml patch formats.

learn how custom resource definitions extend the Kubernetes API and how customize uses transformer configurations to update CRD spec fields like config map ref and image.

Master multi-env workflows in kustomize using a base and overlays to generate production-ready yaml for the Kubernetes API. Organize per-service directories and address hard-coded environment variables.

Explore multi-environment workflows with kustomize, using base and overlays for dev, stage, and prod to deploy online boutique application. Extract components for ops and security, then apply with port-forward verification.

Structure complex microservice manifests with a base directory and overlays, grouping services into subdirectories and using customization files to assemble deployments, namespaces, and environment-specific config maps.

Leverage customized components in Kustomize Mastery to reuse configuration across overlays with a components directory, shared annotations and labels, and optional databases like MySQL or Postgres.

Use replacements in kustomize to copy fields from a source to target resources, updating environment variables and resource names during hydration across overlays.

Set up a GitHub actions workflow with kustomize to hydrate customization manifests and deploy to a GKE cluster, using workload identity federation for secure authentication.

Continue exploring kustomize with upcoming videos, including helm comparisons, limitations, and real-world use cases. Join the Slack channel for suggestions and build something fun.

Explore the Kustomize CLI to build and hydrate Kubernetes manifests from a customization file, and leverage cfg, create, edit, and completion commands for managing resources.

Learn to work with customize using helm charts and the Helm CLI. Enable Helm in customize and deploy MySQL and Prometheus in database and monitoring namespaces from Helm charts.