streams-manifests/kafka-resources/overlays/prod/kafka-schema-registry/schema-registry-deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: schema-registry
  name: schema-registry
  namespace: kafka
spec:
  replicas: 3
  template:
    metadata:
      labels:
        app: schema-registry
    spec:
      containers:
      - name: schema-registry
        image: confluentinc/cp-schema-registry:6.1.1
        ports:
        - containerPort: 8081
        env:
        - name: SCHEMA_REGISTRY_HOST_NAME
          valueFrom:
            fieldRef:
              fieldPath: metadata.name
        - name: SCHEMA_REGISTRY_KAFKASTORE_BOOTSTRAP_SERVERS
          value: kafka-cluster-kafka-plainext-0:9092,kafka-cluster-kafka-plainext-1:9092,kafka-cluster-kafka-plainext-2:9092