# kubectl create configmap -n metacontroller gt-app-controller --from-file=app
# kubectl create configmap -n metacontroller gt-app-templates --from-file=templates
---
apiVersion: metacontroller.k8s.io/v1alpha1
kind: CompositeController
metadata:
  name: gt-app-controller
spec:
  generateSelector: true
  parentResource:
    apiVersion: gtapp.com/v1
    resource: gtapps
    revisionHistory:
      fieldPaths:
      - spec.template
  childResources:
  - apiVersion: argoproj.io/v1alpha1
    resource: rollouts
    updateStrategy: #Optional, If no update strategy is specified, children of that type will never be updated if they already exist.
      method: RollingInPlace # It can be one of OnDelete,Recreate,InPlace,RollingRecreate,RollingInPlace
      statusChecks:
        conditions:
        - type: Ready
          status: "True"
  - apiVersion: keda.sh/v1alpha1
    resource: scaledobjects
    updateStrategy:
      method: RollingInPlace
  - apiVersion: argoproj.io/v1alpha1
    resource: applications
    updateStrategy:
      method: RollingInPlace
  - apiVersion: networking.istio.io/v1alpha3
    resource: gateways
    updateStrategy:
      method: RollingInPlace
  - apiVersion: v1
    resource: services
    updateStrategy:
      method: RollingInPlace
  - apiVersion: networking.istio.io/v1alpha3
    resource: virtualservices
    updateStrategy:
      method: RollingInPlace
  hooks:
    sync:
      webhook:
        url: http://gt-app-controller.metacontroller/sync
        timeout: 10s
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: gt-app-controller
  namespace: metacontroller
spec:
  replicas: 1
  selector:
    matchLabels:
      app: gt-app-controller
  template:
    metadata:
      labels:
        app: gt-app-controller
    spec:
      containers:
      - name: controller
        image: <Your image created from Dockerfile>
#        command: ["/bin/sh","-c","ls -lrth /hooks /templates /"]
        command: ["python", "/hooks/sync.py"]
        imagePullPolicy: Always
        volumeMounts:
        - name: app
          mountPath: /hooks
        - name: templates
          mountPath: /templates
      volumes:
      - name: app
        configMap:
          name: gt-app-controller
      - name: templates
        configMap:
          name: gt-app-templates
---
apiVersion: v1
kind: Service
metadata:
  name: gt-app-controller
  namespace: metacontroller
spec:
  selector:
    app: gt-app-controller
  ports:
  - port: 80