Setup kubernetes GitHub token secret

Create a GitHub token

You can just select "packages:read" it's enough to pull images from the GitHub container registry.

Create the base64 token

echo -n "<username>:<gh_token>" | base64

Create the temporary .json config file

touch ~/.docker/config.json

{
  "auths": {
    "ghcr.io": {
      "auth": "<base64_token>"
    }
  }
}

Hash the config file

cat ~/.docker/config.json | base64

Use the hash to create the secret

---
apiVersion: v1
kind: Secret
metadata:
  name: ghcr-secret
  namespace: healthcheck
data:
  .dockerconfigjson: <base64_hash>
type: kubernetes.io/dockerconfigjson
---