workflow/example/chat-platform/docker-compose.yml at main · GoCodeAlone/workflow · GitHub

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# Multi-container chat platform with Kafka communication.
#
# Architecture:
#   gateway        - SPA + reverse proxy (port 8080)
#   api            - Auth + platform CRUD (port 8081)
#   conversation   - Chat state machine + providers (port 8082)
#   kafka          - Event bus (KRaft mode, no Zookeeper)
#
# Usage:
#   Distributed: docker compose --profile distributed up
#   Monolith:    go run ./cmd/server -config example/chat-platform/workflow.yaml

services:
  # --- Kafka (KRaft mode — no Zookeeper) ---
  kafka:
    image: apache/kafka:latest
    environment:
      - KAFKA_NODE_ID=0
      - KAFKA_PROCESS_ROLES=broker,controller
      - KAFKA_CONTROLLER_QUORUM_VOTERS=0@kafka:9093
      - KAFKA_LISTENERS=PLAINTEXT://:9092,CONTROLLER://:9093
      - KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://kafka:9092
      - KAFKA_LISTENER_SECURITY_PROTOCOL_MAP=CONTROLLER:PLAINTEXT,PLAINTEXT:PLAINTEXT
      - KAFKA_CONTROLLER_LISTENER_NAMES=CONTROLLER
      - KAFKA_AUTO_CREATE_TOPICS_ENABLE=true
      - KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR=1
      - KAFKA_GROUP_INITIAL_REBALANCE_DELAY_MS=0
      - CLUSTER_ID=chat-platform-kafka-cluster-001
    ports:
      - "9092:9092"
    healthcheck:
      test: ["CMD-SHELL", "/opt/kafka/bin/kafka-topics.sh --bootstrap-server localhost:9092 --list || exit 1"]
      interval: 10s
      timeout: 5s
      retries: 10
      start_period: 30s
    profiles: [distributed]
    restart: unless-stopped

  # --- Gateway: SPA + reverse proxy ---
  gateway:
    build:
      context: ../..
      dockerfile: example/chat-platform/Dockerfile
    ports:
      - "8080:8080"
    command: ["./server", "-config", "config/configs/gateway.yaml", "-mgmt-addr", ":9080"]
    depends_on:
      api:
        condition: service_healthy
      conversation:
        condition: service_healthy
    healthcheck:
      test: ["CMD", "wget", "-q", "--spider", "http://localhost:8080/healthz"]
      interval: 10s
      timeout: 5s
      retries: 3
    profiles: [distributed]
    restart: unless-stopped

  # --- API service: Auth + platform CRUD ---
  api:
    build:
      context: ../..
      dockerfile: example/chat-platform/Dockerfile
    environment:
      - JWT_SECRET=${JWT_SECRET:?JWT_SECRET must be set}
      - ENCRYPTION_KEY=${ENCRYPTION_KEY:?ENCRYPTION_KEY must be set}
    command: ["./server", "-config", "config/configs/api.yaml", "-mgmt-addr", ":9081"]
    volumes:
      - api-data:/app/data
    healthcheck:
      test: ["CMD", "wget", "-q", "--spider", "http://localhost:8081/healthz"]
      interval: 10s
      timeout: 5s
      retries: 3
    profiles: [distributed]
    restart: unless-stopped

  # --- Conversation service: Chat + state machine ---
  conversation:
    build:
      context: ../..
      dockerfile: example/chat-platform/Dockerfile
    environment:
      - JWT_SECRET=${JWT_SECRET:?JWT_SECRET must be set}
      - ENCRYPTION_KEY=${ENCRYPTION_KEY:?ENCRYPTION_KEY must be set}
    command: ["./server", "-config", "config/configs/conversation.yaml", "-mgmt-addr", ":9082"]
    volumes:
      - conversation-data:/app/data
    depends_on:
      kafka:
        condition: service_healthy
    healthcheck:
      test: ["CMD", "wget", "-q", "--spider", "http://localhost:8082/healthz"]
      interval: 10s
      timeout: 5s
      retries: 3
    profiles: [distributed]
    restart: unless-stopped

  # --- Observability ---
  prometheus:
    image: prom/prometheus:v2.51.0
    ports:
      - "9090:9090"
    volumes:
      - ./observability/prometheus.yml:/etc/prometheus/prometheus.yml
    depends_on:
      - gateway
    profiles: [distributed]
    restart: unless-stopped

  grafana:
    image: grafana/grafana:10.4.0
    ports:
      - "3000:3000"
    environment:
      - GF_SECURITY_ADMIN_PASSWORD=${GRAFANA_ADMIN_PASSWORD:-admin}
      - GF_AUTH_ANONYMOUS_ENABLED=false
    volumes:
      - ./observability/grafana/provisioning:/etc/grafana/provisioning
      - ./observability/grafana/dashboards:/var/lib/grafana/dashboards
    depends_on:
      - prometheus
    profiles: [distributed]
    restart: unless-stopped

volumes:
  api-data:
  conversation-data: