advanced.yaml

apiVersion: core.oam.dev/v1beta1
kind: Application
metadata:
  name: example-app
  namespace: default
spec:
  components:
    - name: hello-world-server
      type: webservice
      properties:
        image: crccheck/hello-world
        port: 8000
      traits:
        - type: scaler
          properties:
            replicas: 3
        - type: gateway
          properties:
            domain: testsvc-mc.example.com
            # classInSpec : true   如果你所下发的集群里有安装 v1.20 以下版本的 Kubernetes ，请加上这个字段
            http:
              "/": 8000
  policies:
    - type: topology
      name: beijing-clusters
      properties:
        clusters: ["beijing-1","beijing-2"]
    - type: topology
      name: topology-aws
      properties:
        clusterLabelSelector:
          provider: AWS
    -  type: override
       name: override-high-availability
       properties:
          components:
            - type: webservice
              traits:
              - type: scaler
                properties:
                  replicas: 5
  workflow:
    steps:
      - type: deploy
        name: deploy-beijing
        properties:
          policies: ["beijing-clusters"]
      - type: deploy
        name: deploy-aws
        properties:
          policies: ["override-high-availability","topology-aws"]