add argocd for prod

kustomize-guestbook/overlays/prod/argo-app.yaml

@@ -0,0 +1,16 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: guestbook
+  namespace: argocd
+  # finalizers:
+  # - resources-finalizer.argocd.argoproj.io
+spec:
+  destination:
+    namespace: prod-kustomize-guestbook
+    server: https://kubernetes.default.svc
+  project: default
+  source:
+    path: kustomize-guestbook/overlays/dev
+    repoURL: https://github.com/radtac-craft/argocd-example-apps.git
+    targetRevision: HEAD

kustomize-guestbook/overlays/prod/kustomization.yaml

@@ -3,3 +3,4 @@ bases:
 namePrefix: prod-
 patchesStrategicMerge:
 - ingress.yaml
+- argo-app.yaml