kafka-ssl.yml

---
version: '3.4'
services:
  kafka-ui:
    container_name: kafka-ui
    image: provectuslabs/kafka-ui:latest
    ports:
      - 8080:8080
    depends_on:
      - kafka
    environment:
      KAFKA_CLUSTERS_0_NAME: local
      KAFKA_CLUSTERS_0_PROPERTIES_SECURITY_PROTOCOL: SSL
      KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS: kafka:29092 # SSL LISTENER!
      KAFKA_CLUSTERS_0_PROPERTIES_SSL_TRUSTSTORE_LOCATION: /kafka.truststore.jks
      KAFKA_CLUSTERS_0_PROPERTIES_SSL_TRUSTSTORE_PASSWORD: secret
      KAFKA_CLUSTERS_0_PROPERTIES_SSL_KEYSTORE_LOCATION: /kafka.keystore.jks
      KAFKA_CLUSTERS_0_PROPERTIES_SSL_KEYSTORE_PASSWORD: secret
      KAFKA_CLUSTERS_0_PROPERTIES_SSL_ENDPOINT_IDENTIFICATION_ALGORITHM: '' # DISABLE COMMON NAME VERIFICATION
    volumes:
      - ./ssl/kafka.truststore.jks:/kafka.truststore.jks
      - ./ssl/kafka.keystore.jks:/kafka.keystore.jks

  kafka:
    image: confluentinc/cp-kafka:7.2.1
    hostname: kafka
    container_name: kafka
    ports:
      - "9092:9092"
      - "9997:9997"
    environment:
      KAFKA_BROKER_ID: 1
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: 'CONTROLLER:PLAINTEXT,SSL:SSL,PLAINTEXT_HOST:PLAINTEXT'
      KAFKA_ADVERTISED_LISTENERS: 'SSL://kafka:29092,PLAINTEXT_HOST://localhost:9092'
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
      KAFKA_GROUP_INITIAL_REBALANCE_DELAY_MS: 0
      KAFKA_TRANSACTION_STATE_LOG_MIN_ISR: 1
      KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: 1
      KAFKA_JMX_PORT: 9997
      KAFKA_JMX_HOSTNAME: localhost
      KAFKA_PROCESS_ROLES: 'broker,controller'
      KAFKA_NODE_ID: 1
      KAFKA_CONTROLLER_QUORUM_VOTERS: '1@kafka:29093'
      KAFKA_LISTENERS: 'SSL://kafka:29092,CONTROLLER://kafka:29093,PLAINTEXT_HOST://0.0.0.0:9092'
      KAFKA_INTER_BROKER_LISTENER_NAME: 'SSL'
      KAFKA_CONTROLLER_LISTENER_NAMES: 'CONTROLLER'
      KAFKA_LOG_DIRS: '/tmp/kraft-combined-logs'
      KAFKA_SECURITY_PROTOCOL: SSL
      KAFKA_SSL_ENABLED_MECHANISMS: PLAIN,SSL
      KAFKA_SSL_KEYSTORE_FILENAME: kafka.keystore.jks
      KAFKA_SSL_KEYSTORE_CREDENTIALS: creds
      KAFKA_SSL_KEY_CREDENTIALS: creds
      KAFKA_SSL_TRUSTSTORE_FILENAME: kafka.truststore.jks
      KAFKA_SSL_TRUSTSTORE_CREDENTIALS: creds
      #KAFKA_SSL_CLIENT_AUTH: 'required'
      KAFKA_SSL_CLIENT_AUTH: 'requested'
      KAFKA_SSL_ENDPOINT_IDENTIFICATION_ALGORITHM: '' # COMMON NAME VERIFICATION IS DISABLED SERVER-SIDE
    volumes:
      - ./scripts/update_run.sh:/tmp/update_run.sh
      - ./ssl/creds:/etc/kafka/secrets/creds
      - ./ssl/kafka.truststore.jks:/etc/kafka/secrets/kafka.truststore.jks
      - ./ssl/kafka.keystore.jks:/etc/kafka/secrets/kafka.keystore.jks
    command: "bash -c 'if [ ! -f /tmp/update_run.sh ]; then echo \"ERROR: Did you forget the update_run.sh file that came with this docker-compose.yml file?\" && exit 1 ; else /tmp/update_run.sh && /etc/confluent/docker/run ; fi'"