kubevela通过CLI部署应用

通过 CLI 也可以完成业务应用示例的部署，通过执行下述命令即可：

cat <<EOF | vela up -f -
# YAML begins
apiVersion: core.oam.dev/v1beta1
kind: Application
metadata:
  name: webservice-app
spec:
  components:
    - name: frontend
      type: webservice
      properties:
        image: oamdev/testapp:v1
        cmd: ["node", "server.js"]
        ports:
          - port: 8080
            expose: true
        exposeType: LoadBalancer
        cpu: "0.5"
        memory: "512Mi"
      traits:
        - type: scaler
          properties:
            replicas: 1
# YAML ends
EOF

参考链接：
http://static.kubevela.net/zh/docs/v1.3/tutorials/webservice