volumes:
  postgres_data:
  jenkins_home:
  gitea_data:
  traefik_letsencrypt:

networks:
  proxy:            # internet-facing network, containers reachable via Traefik
    driver: bridge
    name: proxy
  internal:          # no internet access; for DB + backend services only
    driver: bridge
    internal: true
    name: internal
  socket-proxy:      # isolated network just for Traefik <-> Docker API access
    driver: bridge
    name: socket-proxy

services:

  # ---------------------------------------------------------------------
  # Restricts Docker API access so Traefik never touches the raw socket.
  # Only exposes the read-only "list containers" endpoint it needs to
  # discover services and their labels.
  # ---------------------------------------------------------------------
  socket-proxy:
    image: tecnativa/docker-socket-proxy:0.3
    container_name: socket-proxy
    restart: unless-stopped
    environment:
      CONTAINERS: 1
      SERVICES: 0
      TASKS: 0
      NETWORKS: 0
      POST: 0
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
    networks:
      - socket-proxy

  traefik:
    image: traefik:v3.6
    container_name: traefik
    restart: unless-stopped
    command:
      - "--api.dashboard=true"
      - "--api.insecure=false"
      - "--providers.docker=true"
      - "--providers.docker.endpoint=tcp://socket-proxy:2375"
      - "--providers.docker.exposedbydefault=false"
      - "--entrypoints.web.address=:80"
      - "--entrypoints.websecure.address=:443"
      - "--certificatesresolvers.le.acme.email=${ACME_EMAIL}"
      - "--certificatesresolvers.le.acme.storage=/letsencrypt/acme.json"
      - "--certificatesresolvers.le.acme.httpchallenge=true"
      - "--certificatesresolvers.le.acme.httpchallenge.entrypoint=web"
      - "--entrypoints.web.http.redirections.entrypoint.to=websecure"
      - "--entrypoints.web.http.redirections.entrypoint.scheme=https"
      - "--log.level=WARN"
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - traefik_letsencrypt:/letsencrypt
    networks:
      - proxy
      - socket-proxy
    labels:
      - "traefik.enable=true"
      # Global security headers applied to every router below
      - "traefik.http.middlewares.sec-headers.headers.stsSeconds=31536000"
      - "traefik.http.middlewares.sec-headers.headers.stsIncludeSubdomains=true"
      - "traefik.http.middlewares.sec-headers.headers.forceSTSHeader=true"
      - "traefik.http.middlewares.sec-headers.headers.frameDeny=true"
      - "traefik.http.middlewares.sec-headers.headers.contentTypeNosniff=true"
      - "traefik.http.middlewares.sec-headers.headers.browserXssFilter=true"

  postgres:
    image: postgres:16
    container_name: postgres
    restart: unless-stopped
    environment:
      POSTGRES_DB: ${POSTGRES_DB}
      POSTGRES_USER: ${POSTGRES_USER}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
    volumes:
      - postgres_data:/var/lib/postgresql/data
    networks:
      - internal        # no "proxy" network, no published ports -> unreachable from outside
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER}"]
      interval: 30s
      timeout: 10s
      retries: 5

  apache:
    image: httpd:2.4
    container_name: website
    restart: unless-stopped
    volumes:
      - ./website:/usr/local/apache2/htdocs:ro
    networks:
      - proxy
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.website.rule=Host(`${DOMAIN}`) || Host(`www.${DOMAIN}`)"
      - "traefik.http.routers.website.entrypoints=websecure"
      - "traefik.http.routers.website.tls.certresolver=le"
      - "traefik.http.routers.website.middlewares=sec-headers@docker"
      - "traefik.http.services.website.loadbalancer.server.port=80"

  gitea:
    image: gitea/gitea:1.22
    container_name: gitea
    restart: unless-stopped
    environment:
      USER_UID: 1000
      USER_GID: 1000
      GITEA__server__ROOT_URL: https://git.${DOMAIN}/
    volumes:
      - gitea_data:/data
    networks:
      - proxy
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.gitea.rule=Host(`git.${DOMAIN}`)"
      - "traefik.http.routers.gitea.entrypoints=websecure"
      - "traefik.http.routers.gitea.tls.certresolver=le"
      - "traefik.http.routers.gitea.middlewares=sec-headers@docker"
      - "traefik.http.services.gitea.loadbalancer.server.port=3000"

  jenkins:
    image: jenkins/jenkins:lts-jdk21
    container_name: jenkins
    restart: unless-stopped
    volumes:
      - jenkins_home:/var/jenkins_home
      - /var/run/docker.sock:/var/run/docker.sock  # see README: known risk, needed for CI docker builds
    group_add:
      - "988"    # host docker group GID
    networks:
      - proxy
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.jenkins.rule=Host(`ci.${DOMAIN}`)"
      - "traefik.http.routers.jenkins.entrypoints=websecure"
      - "traefik.http.routers.jenkins.tls.certresolver=le"
      - "traefik.http.routers.jenkins.middlewares=sec-headers@docker"
      - "traefik.http.services.jenkins.loadbalancer.server.port=8080"

  api:
    build: ./api
    container_name: api
    restart: unless-stopped
    networks:
      - proxy
      - internal       # future: talk to postgres directly, still no internet exposure beyond Traefik
    labels:
      - "traefik.enable=true"
      - "traefik.docker.network=proxy"
      - "traefik.http.routers.api.rule=Host(`api.${DOMAIN}`)"
      - "traefik.http.routers.api.entrypoints=websecure"
      - "traefik.http.routers.api.tls.certresolver=le"
      - "traefik.http.routers.api.middlewares=sec-headers@docker"
      - "traefik.http.services.api.loadbalancer.server.port=3000"