# DOMAIN=example.com docker stack deploy -c discourse.yml discourse

x-defaults: &defaults
  image: bitnami/discourse:${VERSION:-3.3.2}
  environment:
    DISCOURSE_DATABASE_HOST: postgres
    DISCOURSE_DATABASE_NAME: discourse
    DISCOURSE_DATABASE_USER: discourse
    DISCOURSE_DATABASE_PASSWORD: myp@ssw0rd
    DISCOURSE_USERNAME: ${ADMIN_USERNAME:-admin}
    DISCOURSE_PASSWORD: ${ADMIN_PASSWORD:-myp@ssw0rd}
    DISCOURSE_EMAIL: ${ADMIN_EMAIL:-admin@example.com}
    DISCOURSE_HOST: ${DOMAIN:-discourse.localhost}
    DISCOURSE_PORT: 3000
    DISCOURSE_SMTP_HOST: ${SMTP_HOST}
    DISCOURSE_SMTP_PORT: ${SMTP_PORT}
    DISCOURSE_SMTP_USER: ${SMTP_USER}
    DISCOURSE_SMTP_PASSWORD: ${SMTP_PASSWORD}
    DISCOURSE_SMTP_AUTH: ${SMTP_AUTH:-login}
    DISCOURSE_SMTP_PROTOCOL: ${SMTP_PROTOCOL:-tls}
    DISCOURSE_SMTP_ENABLE_START_TLS: ${SMTP_TLS:-true}
    DISCOURSE_NOTIFICATION_EMAIL: ${SMTP_FROM:-noreply@example.com}
    ALLOW_EMPTY_PASSWORD: "yes"
    GITLAB_APP_ID: ${GITLAB_APP_ID}
    GITLAB_SECRET: ${GITLAB_SECRET}
    GITLAB_URL: ${GITLAB_URL}
    BITNAMI_DEBUG: ${BITNAMI_DEBUG:-false}
    DISCOURSE_EXTRA_CONF_CONTENT: |
        force_https = true

services:
  discourse:
    <<: *defaults
    volumes:
      - ${VOLUME_PATH}data:/bitnami
    deploy:
      labels:
        - traefik.enable=true
        - traefik.http.routers.discourse-${NUMBER:-1}.rule=Host(`${DOMAIN:-discourse.localhost}`)
        - traefik.http.routers.discourse-${NUMBER:-1}.entrypoints=${SCHEME:-https}
        - traefik.http.routers.discourse-${NUMBER:-1}.service=discourse-${NUMBER:-1}
        - traefik.http.routers.discourse-${NUMBER:-1}.tls.certresolver=letsencrypt
        - traefik.http.services.discourse-${NUMBER:-1}.loadbalancer.server.port=3000
    networks:
      - traefik
      - internal

  sidekiq:
    <<: *defaults
    command: /opt/bitnami/scripts/discourse-sidekiq/run.sh
    volumes:
      - ${VOLUME_PATH}sidekiq:/bitnami
    networks:
      - internal

  postgres:
    image: postgres:${POSTGRES_VERSION:-12-alpine}
    environment:
      - POSTGRES_DB=discourse
      - POSTGRES_USER=discourse
      - POSTGRES_PASSWORD=myp@ssw0rd
    volumes:
      - ${VOLUME_PATH}postgres:/var/lib/postgresql/data
    networks:
      - internal

  redis:
    image: redis:6-alpine
    environment:
      - ALLOW_EMPTY_PASSWORD=yes
    networks:
      - internal

volumes:
  postgres:
  data:
  sidekiq:

networks:
  internal:
    driver: overlay
    attachable: true
  traefik:
    external: true
    name: traefik-net