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Argo CD single-apply example (CloudNativePG + coder-k8s)

This example bootstraps the full stack from one ApplicationSet:

  1. CloudNativePG operator
  2. coder-k8s operator stack (CRDs + RBAC + deployment)
  3. CloudNativePG PostgreSQL Cluster
  4. CoderControlPlane

Prerequisites

  • A Kubernetes cluster
  • kubectl configured for that cluster
  • Argo CD installed (including the ApplicationSet controller)
  • Argo CD v2.6+ (required for Application sources in apps/01-coder-k8s-operator.yaml)

Apply one manifest

kubectl apply -f examples/argocd/applicationset.yaml

That creates:

  • ApplicationSet coder-k8s-stack
  • parent Application coder-k8s-stack
  • child Applications in examples/argocd/apps/

Ordering behavior

apps/00-cnpg-operator.yaml and apps/01-coder-k8s-operator.yaml are synced in wave 0, and apps/02-coder-cloudnativepg.yaml in wave 1.

The CloudNativePG example manifests (examples/cloudnativepg/) also include resource-level sync waves so PostgreSQL is applied before CoderControlPlane.

Watch rollout

kubectl -n argocd get applications
kubectl -n coder wait --for=condition=Ready cluster/coder-db --timeout=10m
kubectl -n coder rollout status deployment/coder --timeout=10m

Access Coder

kubectl -n coder port-forward svc/coder 3000:80

Open http://localhost:3000/setup and complete the setup flow.

Customization

  • This example tracks https://github.com/coder/coder-k8s.git at main for child apps. Update repoURL and targetRevision in examples/argocd/apps/*.yaml if you want to pin to a tag or use a fork.
  • apps/00-cnpg-operator.yaml uses targetRevision: "*" for the CloudNativePG chart. Pin this to a specific chart version for reproducibility.

Cleanup

kubectl -n argocd delete applicationset coder-k8s-stack

Depending on your storage class reclaim policy, PVCs from PostgreSQL may remain after cleanup.