Docker-Compose/Discourse/docker-compose.yaml

services:

  postgresql:
    image: bitnami/postgresql:15
    container_name: discourse_postgres
    restart: unless-stopped
    volumes:
      - postgres_data:/bitnami/postgresql
    environment:
      - POSTGRESQL_POSTGRES_PASSWORD=${POSTGRES_ROOT_PASSWORD}
      - POSTGRESQL_USERNAME=${DISCOURSE_DB_USER}
      - POSTGRESQL_PASSWORD=${DISCOURSE_DB_PASSWORD}
      - POSTGRESQL_DATABASE=${DISCOURSE_DB_NAME}
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${DISCOURSE_DB_USER} -d ${DISCOURSE_DB_NAME}"]
      interval: 15s
      timeout: 5s
      retries: 5
      start_period: 30s
    networks:
      - discourse_internal

  redis:
    image: bitnami/redis:7.2
    container_name: discourse_redis
    restart: unless-stopped
    volumes:
      - redis_data:/bitnami/redis/data
    environment:
      - REDIS_PASSWORD=${REDIS_PASSWORD}
      - REDIS_DISABLE_COMMANDS=FLUSHDB,FLUSHALL
    healthcheck:
      test: ["CMD", "redis-cli", "-a", "${REDIS_PASSWORD}", "ping"]
      interval: 15s
      timeout: 5s
      retries: 5
      start_period: 15s
    networks:
      - discourse_internal

  discourse:
    image: bitnami/discourse:3
    container_name: discourse_app
    restart: unless-stopped
    depends_on:
      postgresql:
        condition: service_healthy
      redis:
        condition: service_healthy
    volumes:
      - discourse_data:/bitnami/discourse
    environment:
      # --- Site ---
      - DISCOURSE_HOST=${DISCOURSE_HOST}
      - DISCOURSE_SITE_NAME=${DISCOURSE_SITE_NAME}
      - DISCOURSE_HTTPS=false  # SSL is handled by Nginx Proxy Manager

      # --- Admin account (first-run only) ---
      - DISCOURSE_USERNAME=${DISCOURSE_ADMIN_USERNAME}
      - DISCOURSE_PASSWORD=${DISCOURSE_ADMIN_PASSWORD}
      - DISCOURSE_EMAIL=${DISCOURSE_ADMIN_EMAIL}

      # --- Database ---
      - DISCOURSE_DATABASE_HOST=postgresql
      - DISCOURSE_DATABASE_PORT_NUMBER=5432
      - DISCOURSE_DATABASE_NAME=${DISCOURSE_DB_NAME}
      - DISCOURSE_DATABASE_USER=${DISCOURSE_DB_USER}
      - DISCOURSE_DATABASE_PASSWORD=${DISCOURSE_DB_PASSWORD}
      - POSTGRESQL_CLIENT_DATABASE_HOST=postgresql
      - POSTGRESQL_CLIENT_DATABASE_PORT_NUMBER=5432
      - POSTGRESQL_CLIENT_POSTGRES_USER=postgres
      - POSTGRESQL_CLIENT_POSTGRES_PASSWORD=${POSTGRES_ROOT_PASSWORD}
      - POSTGRESQL_CLIENT_CREATE_DATABASE_NAME=${DISCOURSE_DB_NAME}
      - POSTGRESQL_CLIENT_CREATE_DATABASE_USERNAME=${DISCOURSE_DB_USER}
      - POSTGRESQL_CLIENT_CREATE_DATABASE_PASSWORD=${DISCOURSE_DB_PASSWORD}

      # --- Redis ---
      - DISCOURSE_REDIS_HOST=redis
      - DISCOURSE_REDIS_PORT_NUMBER=6379
      - DISCOURSE_REDIS_PASSWORD=${REDIS_PASSWORD}

      # --- SMTP (Microsoft 365 / Outlook Business) ---
      - DISCOURSE_SMTP_HOST=smtp.office365.com
      - DISCOURSE_SMTP_PORT=587
      - DISCOURSE_SMTP_USER=${SMTP_USERNAME}
      - DISCOURSE_SMTP_PASSWORD=${SMTP_PASSWORD}
      - DISCOURSE_SMTP_PROTOCOL=tls
      - DISCOURSE_SMTP_AUTH=login
      - DISCOURSE_NOTIFICATION_EMAIL=${SMTP_FROM_ADDRESS}
    healthcheck:
      test: ["CMD-SHELL", "curl -f http://localhost:3000/ || exit 1"]
      interval: 30s
      timeout: 15s
      retries: 5
      start_period: 120s
    networks:
      - discourse_internal
      - proxy
    # No ports exposed to host — Nginx Proxy Manager connects via the proxy network

  sidekiq:
    image: bitnami/discourse:3
    container_name: discourse_sidekiq
    restart: unless-stopped
    depends_on:
      discourse:
        condition: service_healthy
    volumes:
      - discourse_data:/bitnami/discourse
    command: /opt/bitnami/scripts/discourse-sidekiq/run.sh
    environment:
      # Inherit the same config as the main app
      - DISCOURSE_HOST=${DISCOURSE_HOST}
      - DISCOURSE_DATABASE_HOST=postgresql
      - DISCOURSE_DATABASE_PORT_NUMBER=5432
      - DISCOURSE_DATABASE_NAME=${DISCOURSE_DB_NAME}
      - DISCOURSE_DATABASE_USER=${DISCOURSE_DB_USER}
      - DISCOURSE_DATABASE_PASSWORD=${DISCOURSE_DB_PASSWORD}
      - DISCOURSE_REDIS_HOST=redis
      - DISCOURSE_REDIS_PORT_NUMBER=6379
      - DISCOURSE_REDIS_PASSWORD=${REDIS_PASSWORD}
      - DISCOURSE_SMTP_HOST=smtp.office365.com
      - DISCOURSE_SMTP_PORT=587
      - DISCOURSE_SMTP_USER=${SMTP_USERNAME}
      - DISCOURSE_SMTP_PASSWORD=${SMTP_PASSWORD}
      - DISCOURSE_SMTP_PROTOCOL=tls
      - DISCOURSE_SMTP_AUTH=login
      - DISCOURSE_NOTIFICATION_EMAIL=${SMTP_FROM_ADDRESS}
    networks:
      - discourse_internal

volumes:
  postgres_data:
    driver: local
  redis_data:
    driver: local
  discourse_data:
    driver: local

networks:
  discourse_internal:
    driver: bridge
    internal: true   # Postgres and Redis are not reachable from outside the stack
  proxy:
    external: true   # Must match the network name used by your NPM stack