app-to-app.yaml

apiVersion: v1
kind: Namespace
metadata:
  labels:
    kubernetes.io/metadata.name: test
  name: test
---
apiVersion: argoproj.io/v1alpha1
kind: AppProject
metadata:
  name: guestbook
  namespace: argocd
spec:
  clusterResourceWhitelist:
    - group: '*'
      kind: '*'
  destinations:
    - namespace: '*'
      server: '*'
  sourceRepos:
    - '*'
  sourceNamespaces:
    - '*'
---
apiVersion: argoproj.io/v1alpha1
kind: AppProject
metadata:
  name: guestbook
  namespace: test
spec:
  clusterResourceWhitelist:
    - group: '*'
      kind: '*'
  destinations:
    - namespace: '*'
      server: '*'
  sourceRepos:
    - '*'
  sourceNamespaces:
    - '*'
---
apiVersion: argoproj.io/v1alpha1
kind: Application
metadata:
  name: bootstrap-app
  namespace: test
spec:
  destination:
    name: in-cluster
    namespace: test
  project: guestbook
  source:
    path: apps
    repoURL: https://github.com/ch007m/my-argocd.git
    targetRevision: HEAD
  syncPolicy:
    automated: {}
    syncOptions:
      - CreateNamespace=false