golang-saas-starter-kit/example-project/docker-compose.yaml

# https://docs.docker.com/compose/compose-file
# docker-compose up
# docker-compose stop
# docker-compose down
version: '3'

networks:
  main:

services:
  postgres:
    image: postgres:11-alpine
    expose:
      - "5433"
    ports:
      - "5433:5432"
    networks:
      main:
        aliases:
          - postgres
    environment:
      - POSTGRES_USER=postgres
      - POSTGRES_PASS=postgres
      - POSTGRES_DB=shared

  redis:
    image: redis:latest
    expose:
      - "6379"
    ports:
      - "6379:6379"
    networks:
      main:
        aliases:
          - redis
    entrypoint: redis-server --appendonly yes

  datadog:
    image: example-project/datadog:latest
    build:
      context: docker/datadog-agent
      dockerfile: Dockerfile
    ports:
      - 8125:8125 # metrics
      - 8126:8126 # tracing
    networks:
      main:
        aliases:
          - datadog
    env_file:
      - .env_docker_compose
    environment:
      - DD_LOGS_ENABLED=true
      - DD_APM_ENABLED=true
      - DD_RECEIVER_PORT=8126
      - DD_APM_NON_LOCAL_TRAFFIC=true
      - DD_LOGS_CONFIG_CONTAINER_COLLECT_ALL=true
      - DD_TAGS=source:docker env:dev
      - DD_DOGSTATSD_ORIGIN_DETECTION=true
      - DD_DOGSTATSD_NON_LOCAL_TRAFFIC=true
      #- ECS_FARGATE=false
      - DD_EXPVAR=service_name=web-app env=dev url=http://web-app:4000/debug/vars|service_name=web-api env=dev url=http://web-api:4001/debug/vars
  web-app:
    image: example-project/web-app:latest
    build:
      context: .
      dockerfile: cmd/web-app/Dockerfile
    ports:
      - 3000:3000 # WEB APP
      - 4000:4000 # DEBUG API
    networks:
      main:
        aliases:
          - web-app
    links:
      - postgres
      - redis
      - datadog
    env_file:
      - .env_docker_compose
    environment:
      - WEB_APP_HTTP_HOST=0.0.0.0:3000
      - WEB_APP_APP_BASE_URL=http://127.0.0.1:3000
      - WEB_API_APP_DEBUG_HOST=0.0.0.0:4000
      - WEB_APP_REDIS_HOST=redis:6379
      - WEB_APP_DB_HOST=postgres:5433
      - WEB_APP_DB_USER=postgres
      - WEB_APP_DB_PASS=postgres
      - WEB_APP_DB_DATABASE=shared
      - DD_TRACE_AGENT_HOSTNAME=datadog
      - DD_TRACE_AGENT_PORT=8126
      - DD_SERVICE_NAME=web-app
      - DD_ENV=dev
      # - GODEBUG=gctrace=1

  web-api:
    image: example-project/web-api:latest
    build:
      context: .
      dockerfile: cmd/web-api/Dockerfile
    ports:
      - 3001:3001 # WEB API
      - 4001:4001 # DEBUG API
    networks:
      main:
        aliases:
          - web-api
    links:
      - postgres
      - redis
      - datadog
    env_file:
      - .env_docker_compose
    environment:
      - WEB_API_HTTP_HOST=0.0.0.0:3001
      - WEB_API_APP_BASE_URL=http://127.0.0.1:3001
      - WEB_API_APP_DEBUG_HOST=0.0.0.0:4001
      - WEB_API_REDIS_HOST=redis:6379
      - WEB_API_DB_HOST=postgres:5433
      - WEB_API_DB_USER=postgres
      - WEB_API_DB_PASS=postgres
      - WEB_API_DB_DATABASE=shared
      - DD_TRACE_AGENT_HOSTNAME=datadog
      - DD_TRACE_AGENT_PORT=8126
      - DD_SERVICE_NAME=web-app
      - DD_ENV=dev
      # - GODEBUG=gctrace=1