How Kustomize works with manifests to deploy applications

The kustomize configuration management tool is integrated with MicroShift. You can use Kustomize and the OpenShift CLI (oc) together to apply customizations to your application manifests and deploy those applications to a MicroShift node.

  • A kustomization.yaml file is a specification of resources plus customizations.

  • Kustomize uses a kustomization.yaml file to load a resource, such as an application, then applies any changes you want to that application manifest and produces a copy of the manifest with the changes overlaid.

  • Using a manifest copy with an overlay keeps the original configuration file for your application intact, while enabling you to deploy iterations and customizations of your applications efficiently.

  • You can then deploy the application in your MicroShift node with an oc command.

Note

At each system start, MicroShift deletes the manifests found in the delete subdirectories and then applies the manifest files found in the manifest directories to the node.

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