KSQL Server running within K8

kafka_ksql.yaml

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: ksql-server
  namespace: kafka
  labels:
    app: ksql-server
spec:
  replicas: 1
  selector:
    matchLabels:
      app: ksql-server
  template:
    metadata:
      labels:
        app: ksql-server
    spec:
      containers:
      - name: ksql-server
        image: confluentinc/cp-ksql-server:5.1.0
        env:
        - name: KSQL_OPTS
          value: "-Dbootstrap.servers=$(OUTSIDE_0_PORT_32400_TCP) -Dlisteners=http://0.0.0.0:8088"
        - name: KSQL_BOOTSTRAP_SERVERS
          value: $(OUTSIDE_0_PORT_32400_TCP)
        - name: KSQL_SERVER_PORT
          value: "8088"
        - name: KSQL_PORT
          value: "8088"
        ports:
        - containerPort: 8088
---
apiVersion: v1
kind: Service
metadata:
  name: ksql
  namespace: kafka
spec:
  ports:
  - port: 8088
  selector:
    app: ksql-server