apiVersion: argoproj.io/v1alpha1
kind: Application
metadata:
  # Name of the Argo CD Application resource itself
  name: cert-manager
  # Namespace where Argo CD is running
  namespace: argocd
  # Optional: Add finalizer to ensure related resources are deleted before the app
  # finalizers:
  #  - resources-finalizer.argocd.argoproj.io
spec:
  # Reference to the Argo CD Project (use 'default' if you haven't set up custom projects)
  project: default

  # Source of the manifests (Helm chart)
  source:
    # URL of the Helm repository
    repoURL: https://charts.jetstack.io
    # Name of the chart in the repository
    chart: cert-manager
    # Specify a specific, stable version of the chart! (e.g., v1.14.4)
    targetRevision: v1.17.1 # <-- UPDATE TO YOUR DESIRED STABLE VERSION

    # Helm-specific configuration
    helm:
      # Reference your custom values file(s)
      # Paths are relative to the root of the Git repository defined in the Application source
      # (or the repo where this Application manifest itself lives if managed via GitOps)
      valueFiles:
        - values.yaml # <-- PATH TO YOUR VALUES FILE IN GIT
      parameters:
        - name: crds.enabled
          value: 'true'      

  # Destination cluster and namespace
  destination:
    # URL of the target cluster (use this for the cluster where Argo CD runs)
    server: https://kubernetes.default.svc
    # Namespace where cert-manager components should be installed *on the target cluster*
    namespace: cert-manager

  # Sync policy
  syncPolicy:
    # Enable automated synchronization
    automated:
      # Delete resources that are no longer defined in the source (Helm chart + values)
      prune: true
      # Automatically sync when the application is found to be OutOfSync
      selfHeal: true

    # Sync options
    syncOptions:
      # Instruct Argo CD to create the destination namespace ('cert-manager') if it doesn't exist.
      - CreateNamespace=true
      # Optional: Sometimes helps prevent race conditions with CRDs
      # - RespectIgnoreDifferences=true
      # - ApplyOutOfSyncOnly=true