clouddeploy.yaml

apiVersion: deploy.cloud.google.com/v1beta1
kind: DeliveryPipeline
metadata:
 name: demo-clouddeploy
description: main application pipeline
serialPipeline:
 stages:
 - targetId: devtarget
   profiles: 
   - dev
 - targetId: prodtarget
   profiles:
   - prod
---
apiVersion: deploy.cloud.google.com/v1beta1
kind: Target
metadata:
 name: devtarget
description: development namespace
gke:
 cluster: projects/<project-name>/locations/<zones>/clusters/<dev cluster name>
---
apiVersion: deploy.cloud.google.com/v1beta1
kind: Target
metadata:
 name: prodtarget
description: production namespace
gke:
 cluster: projects/<project-name>/locations/<zones>/clusters/<prod cluster name>
requireApproval: true

skaffold.yaml

apiVersion: skaffold/v2beta16
kind: Config
profiles:
  - name: dev
    deploy:
      kustomize:
        paths:
          - env/dev
  - name: prod
    deploy:
      kustomize:
        paths:
          - env/prod