docker run -d --name bookinfo-mongo \
  -p 27017:27017 \
  docker.io/istio/examples-bookinfo-mongodb:latest

kubectl apply -f https://raw.githubusercontent.com/istio/istio/release-1.22/samples/bookinfo/platform/kube/bookinfo.yaml
# ratings-v1 引用此 MongoDB Service

apiVersion: apps/v1
kind: Deployment
metadata:
  name: bookinfo-mongodb
spec:
  replicas: 1
  selector:
    matchLabels:
      app: bookinfo-mongodb
  template:
    metadata:
      labels:
        app: bookinfo-mongodb
    spec:
      containers:
        - name: mongodb
          image: docker.io/istio/examples-bookinfo-mongodb:1.18.0
          ports:
            - containerPort: 27017
---
apiVersion: v1
kind: Service
metadata:
  name: bookinfo-mongodb
spec:
  selector:
    app: bookinfo-mongodb
  ports:
    - port: 27017
      targetPort: 27017