mc-router/kustomize/README.md

https://kubernetes.io/docs/tasks/manage-kubernetes-objects/kustomization/

Example

To use your own dev image, such as via Github Packages, create kustomization.yml and alter the overlay to choose role or cluster-role. This example assumes that a docker image pull secret has been created and named ghrc-pull, see below.

apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
resources:
  - https://github.com/itzg/mc-router/kustomize/overlays/role
  # OR
  # - https://github.com/itzg/mc-router/kustomize/overlays/cluster-role
images:
  - name: itzg/mc-router
    # replace your-user-org with your Github user/org and/or replace ghcr.io with your Docker registry
    newName: ghcr.io/your-user-org/mc-router-dev
patches:
  - target:
      name: mc-router
      kind: Deployment
    patch: |-
      apiVersion: apps/v1
      kind: Deployment
      metadata:
        name: _
      spec:
        template:
          spec:
            imagePullSecrets:
              - name: ghcr-pull
            containers:
              - name:  mc-router
                imagePullPolicy: Always

Creating image pull secret

The following is an example of creating an image pull secret named ghrc-pull. Be sure to replace your-user-org and the password will be a personal access token with read:packages scope.

kubectl create secret docker-registry ghcr-pull --docker-server=ghcr.io --docker-username=your-user-org --docker-password=ghp_...

Build and push your image

Be sure to replace your-user-org:

docker build -t ghcr.io/your-user-org/mc-router-dev
docker push ghcr.io/your-user-org/mc-router-dev

Apply the kustomization

kubectl apply -k .

or if you want to preview what will be generated and applied:

kubectl kustomize