picpeak/docker-compose.yml

services:
  # Generates machine secrets (JWT/DB/Redis) on first run when they aren't set
  # in .env (seeds from the env var when provided, else a random value).
  # Idempotent — never overwrites an existing file. See docker-compose.production.yml.
  secrets-init:
    image: alpine:3.20
    container_name: picpeak-secrets-init
    env_file: .env
    entrypoint:
      - sh
      - -c
      - |
        set -e
        mkdir -p /run/secrets
        if [ ! -s /run/secrets/jwt_secret ]; then
          if [ -n "$$JWT_SECRET" ]; then printf '%s' "$$JWT_SECRET" > /run/secrets/jwt_secret;
          else tr -dc A-Za-z0-9 < /dev/urandom | head -c 48 > /run/secrets/jwt_secret; fi
        fi
        if [ ! -s /run/secrets/db_password ]; then
          if [ -n "$$DB_PASSWORD" ]; then printf '%s' "$$DB_PASSWORD" > /run/secrets/db_password;
          else tr -dc A-Za-z0-9 < /dev/urandom | head -c 48 > /run/secrets/db_password; fi
        fi
        if [ ! -s /run/secrets/redis_password ]; then
          if [ -n "$$REDIS_PASSWORD" ]; then printf '%s' "$$REDIS_PASSWORD" > /run/secrets/redis_password;
          else tr -dc A-Za-z0-9 < /dev/urandom | head -c 48 > /run/secrets/redis_password; fi
        fi
        # 644: the readers run as three different users (postgres, redis, nodejs),
        # so a non-root reader must be able to read them. The volume is private to
        # these containers and never host-exposed.
        chmod 644 /run/secrets/jwt_secret /run/secrets/db_password /run/secrets/redis_password
    volumes:
      - picpeak-secrets:/run/secrets
    restart: "no"

  backend:
    build:
      context: ./backend
      dockerfile: Dockerfile
    container_name: picpeak-backend
    restart: unless-stopped
    environment:
      - NODE_ENV=${NODE_ENV:-production}
      - PORT=3000
      - JWT_SECRET=${JWT_SECRET:-}
      - ADMIN_USERNAME=${ADMIN_USERNAME:-admin}
      - ADMIN_EMAIL=${ADMIN_EMAIL:-admin@example.com}
      - ADMIN_PASSWORD=${ADMIN_PASSWORD:-}
      - DATABASE_CLIENT=pg
      - DB_TYPE=postgresql
      - DB_HOST=postgres
      - DB_PORT=5432
      - DB_USER=${DB_USER}
      - DB_PASSWORD=${DB_PASSWORD:-}
      - DB_NAME=${DB_NAME}
      - EXTERNAL_MEDIA_ROOT=${EXTERNAL_MEDIA_ROOT:-/app/storage/external-media}
      - SMTP_HOST=${SMTP_HOST}
      - SMTP_PORT=${SMTP_PORT}
      - SMTP_SECURE=${SMTP_SECURE:-false}
      - SMTP_USER=${SMTP_USER}
      - SMTP_PASS=${SMTP_PASS}
      - EMAIL_FROM=${EMAIL_FROM:-noreply@picpeak.local}
      - FRONTEND_URL=${FRONTEND_URL:-http://localhost:3000}
      # Public API origin for split-origin deployments (#798 SSO redirect_uri).
      # Empty = same origin as FRONTEND_URL (the standard proxied setup).
      - API_URL=${API_URL:-}
      - ADMIN_URL=${ADMIN_URL:-http://localhost:3001}
      - TZ=${TZ:-UTC}
      - STORAGE_PATH=/app/storage
      # Watch-folder auto-import: max photos processed in parallel (default 2).
      - FILE_WATCHER_CONCURRENCY=${FILE_WATCHER_CONCURRENCY:-2}
    # No `user:` directive — as of #484, the container starts as root,
    # chowns the bind mounts to nodejs (UID 1001), then drops privileges
    # via su-exec. PUID/PGID env vars are no longer read; if you need
    # a different runtime UID, pre-chown the host dirs and pin
    # `user: "<uid>:<gid>"` here.
    volumes:
      - ./events:/app/events
      - ./data:/app/data
      - ./logs:/app/logs
      - ./backup:/backup
      - ./storage:/app/storage
      - picpeak-secrets:/run/secrets:ro
    ports:
      - "${BACKEND_PORT:-3001}:3000"
    depends_on:
      secrets-init:
        condition: service_completed_successfully
      postgres:
        condition: service_healthy
    healthcheck:
      test: ["CMD", "wget", "--quiet", "--tries=1", "--spider", "http://127.0.0.1:3000/health"]
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 40s
    networks:
      - picpeak-network

  postgres:
    image: postgres:15-alpine
    container_name: picpeak-postgres
    restart: unless-stopped
    userns_mode: "host"
    environment:
      - POSTGRES_USER=${DB_USER}
      - POSTGRES_PASSWORD_FILE=/run/secrets/db_password
      - POSTGRES_DB=${DB_NAME}
      - PGDATA=/var/lib/postgresql/data/pgdata
      - TZ=${TZ:-UTC}
    volumes:
      - postgres-data:/var/lib/postgresql/data
      - picpeak-secrets:/run/secrets:ro
    depends_on:
      secrets-init:
        condition: service_completed_successfully
    ports:
      - "127.0.0.1:${DB_PORT:-5432}:5432"
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${DB_USER} -d ${DB_NAME}"]
      interval: 10s
      timeout: 5s
      retries: 5
      start_period: 20s
    networks:
      - picpeak-network

  redis:
    image: redis:7-alpine
    container_name: picpeak-redis
    restart: unless-stopped
    userns_mode: "host"
    command: sh -c 'exec redis-server --appendonly yes --requirepass "$$(cat /run/secrets/redis_password)"'
    volumes:
      - redis-data:/data
      - picpeak-secrets:/run/secrets:ro
    depends_on:
      secrets-init:
        condition: service_completed_successfully
    ports:
      - "127.0.0.1:${REDIS_PORT:-6379}:6379"
    healthcheck:
      test: ["CMD", "redis-cli", "--raw", "incr", "ping"]
      interval: 10s
      timeout: 5s
      retries: 3
    networks:
      - picpeak-network

  # Local mail catcher for development/testing only — never wanted in a real
  # deployment. Gated behind the `dev` profile so a plain `docker compose up -d`
  # does NOT start it; opt in with `docker compose --profile dev up -d`. Nothing
  # depends on it (SMTP_HOST comes from .env), so gating is safe.
  mailhog:
    image: mailhog/mailhog:latest
    container_name: picpeak-mailhog
    restart: unless-stopped
    profiles:
      - dev
    ports:
      - "${MAILHOG_SMTP_PORT:-1025}:1025"
      - "${MAILHOG_UI_PORT:-8025}:8025"
    networks:
      - picpeak-network

  frontend:
    build:
      context: ./frontend
      dockerfile: Dockerfile
      args:
        - VITE_API_URL=${VITE_API_URL:-/api}
        - VITE_UMAMI_URL=${VITE_UMAMI_URL:-}
        - VITE_UMAMI_WEBSITE_ID=${VITE_UMAMI_WEBSITE_ID:-}
        - VITE_UMAMI_SHARE_URL=${VITE_UMAMI_SHARE_URL:-}
    container_name: picpeak-frontend
    restart: unless-stopped
    environment:
      - NODE_ENV=${NODE_ENV:-production}
      # Static social-preview brand (#521) — substituted into
      # index.html at container start; see frontend/docker-entrypoint.sh.
      - BRAND_TITLE=${BRAND_TITLE:-PicPeak}
      - BRAND_DESCRIPTION=${BRAND_DESCRIPTION:-Photo gallery shared with PicPeak.}
    ports:
      - "${FRONTEND_PORT:-3000}:80"
    depends_on:
      - backend
    healthcheck:
      test: ["CMD", "wget", "--quiet", "--tries=1", "--spider", "http://127.0.0.1/health"]
      interval: 30s
      timeout: 10s
      retries: 3
    networks:
      - picpeak-network

volumes:
  postgres-data:
    driver: local
  redis-data:
    driver: local
  # Auto-generated machine secrets (jwt/db/redis). Keep it — deleting it orphans
  # the DB password from the Postgres volume.
  picpeak-secrets:
    driver: local

networks:
  picpeak-network:
    driver: bridge