SnapOtter/docker/docker-compose.yml

name: SnapOtter

# CPU deployment — no GPU required.
# Usage: docker compose up -d
# GPU:   docker compose -f docker-compose-gpu.yml up -d

services:
  SnapOtter:
    build:
      context: ..
      dockerfile: docker/Dockerfile
      args:
        SNAPOTTER_ANALYTICS: "on"
    image: snapotter/snapotter:latest
    container_name: SnapOtter
    ports:
      # For internet-facing deployments, bind to localhost only:
      # - "127.0.0.1:1349:1349"
      - "1349:1349"
    volumes:
      - SnapOtter-data:/data           # AI models, user files
      - SnapOtter-workspace:/tmp/workspace  # Temp processing (auto-cleaned)
    environment:
      - AUTH_ENABLED=true
      - DEFAULT_USERNAME=admin
      # Set a strong password. Default is 'admin' -- CHANGE THIS for any non-local deployment.
      # - DEFAULT_PASSWORD=your-strong-password-here
      - DEFAULT_PASSWORD=admin
      - SKIP_MUST_CHANGE_PASSWORD=${SKIP_MUST_CHANGE_PASSWORD:-false}
      - MAX_UPLOAD_SIZE_MB=${MAX_UPLOAD_SIZE_MB:-0}
      - MAX_BATCH_SIZE=${MAX_BATCH_SIZE:-0}
      - MAX_MEGAPIXELS=${MAX_MEGAPIXELS:-0}
      - CONCURRENT_JOBS=${CONCURRENT_JOBS:-0}
      - MAX_WORKER_THREADS=${MAX_WORKER_THREADS:-0}
      - PROCESSING_TIMEOUT_S=${PROCESSING_TIMEOUT_S:-0}
      - MAX_PIPELINE_STEPS=${MAX_PIPELINE_STEPS:-20}
      - RATE_LIMIT_PER_MIN=${RATE_LIMIT_PER_MIN:-1000}
      - MAX_USERS=${MAX_USERS:-0}
      - SESSION_DURATION_HOURS=${SESSION_DURATION_HOURS:-168}
      - TRUST_PROXY=${TRUST_PROXY:-true}
      - DATABASE_URL=postgres://${POSTGRES_USER:-snapotter}:${POSTGRES_PASSWORD:-snapotter}@postgres:5432/${POSTGRES_DB:-snapotter}
      - REDIS_URL=redis://:${REDIS_PASSWORD:-snapotter}@redis:6379
      # 1.x upgrade: uncomment to import the old SQLite database on first boot;
      # re-comment after the migration succeeds.
      # - SQLITE_MIGRATE_PATH=/data/snapotter.db
      # OIDC Authentication (optional)
      # - EXTERNAL_URL=https://photos.example.com
      # - OIDC_ENABLED=false
      # - OIDC_ISSUER_URL=
      # - OIDC_CLIENT_ID=
      # - OIDC_CLIENT_SECRET=
      # - OIDC_SCOPES=openid profile email
      # - OIDC_AUTO_CREATE_USERS=true
      # - OIDC_DEFAULT_ROLE=user
      # - OIDC_AUTO_LINK_USERS=false
      # - OIDC_PROVIDER_NAME=
      # - OIDC_USERNAME_CLAIM=preferred_username
      # - OIDC_CLOCK_TOLERANCE=30
      # - COOKIE_SECRET=
      #
      # Docker secrets (_FILE convention): mount secrets as files instead of
      # passing them as plain-text env vars. Supported for sensitive vars only.
      # - DEFAULT_PASSWORD_FILE=/run/secrets/snapotter_password
      # - S3_ACCESS_KEY_ID_FILE=/run/secrets/s3_access_key
      # - S3_SECRET_ACCESS_KEY_FILE=/run/secrets/s3_secret_key
      # - OIDC_CLIENT_SECRET_FILE=/run/secrets/oidc_secret
      # - COOKIE_SECRET_FILE=/run/secrets/cookie_secret
      # - SNAPOTTER_LICENSE_KEY_FILE=/run/secrets/license_key
    restart: unless-stopped
    depends_on:
      postgres:
        condition: service_healthy
      redis:
        condition: service_healthy
    # --- Security hardening ---
    mem_limit: 6g
    memswap_limit: 6g
    cpus: 4
    pids_limit: 512
    cap_drop:
      - ALL
    cap_add:
      - CHOWN
      - SETUID
      - SETGID
      - DAC_OVERRIDE
      - FOWNER
      # KILL lets tini (PID 1, root) forward SIGTERM to the gosu-dropped
      # snapotter process on shutdown. Without it, root minus CAP_KILL cannot
      # signal a different-UID process, so docker stop is ungraceful
      # ("[FATAL tini] forwarding signal: Operation not permitted" -> SIGKILL).
      - KILL
    # NOTE: security_opt: [no-new-privileges:true] is intentionally omitted.
    # gosu requires setuid to drop from root to the snapotter user.
    # Mitigation: cap_drop: ALL limits available capabilities after privilege drop.
    # NOTE: read_only: true is not set because PUID/PGID remapping requires
    # writing to /etc/passwd and /etc/group. Consider using Docker --user flag
    # instead of PUID/PGID for read-only rootfs support.
    healthcheck:
      test: ["CMD", "curl", "-sf", "--max-time", "5", "http://localhost:1349/api/v1/health"]
      interval: 30s
      timeout: 5s
      start_period: 60s
      retries: 3
    shm_size: '2gb'
    logging:
      driver: json-file
      options:
        max-size: "50m"
        max-file: "5"

  postgres:
    image: postgres:17-alpine
    container_name: SnapOtter-postgres
    environment:
      POSTGRES_USER: ${POSTGRES_USER:-snapotter}
      # Set a strong password. CHANGE THIS for any non-local deployment.
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-snapotter}
      POSTGRES_DB: ${POSTGRES_DB:-snapotter}
    volumes:
      - SnapOtter-pgdata:/var/lib/postgresql/data
    restart: unless-stopped
    # --- Security hardening ---
    mem_limit: 1g
    memswap_limit: 1g
    cpus: 2
    pids_limit: 256
    # The official image starts as root and su-execs down to the postgres user,
    # so setuid/setgid + chown caps are required. no-new-privileges and a
    # read-only rootfs are omitted for the same privilege-drop reason as the app.
    cap_drop:
      - ALL
    cap_add:
      - CHOWN
      - DAC_OVERRIDE
      - FOWNER
      - SETGID
      - SETUID
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER:-snapotter} -d ${POSTGRES_DB:-snapotter}"]
      interval: 10s
      timeout: 5s
      retries: 12
      start_period: 15s

  redis:
    image: redis:8-alpine
    container_name: SnapOtter-redis
    command: >-
      redis-server
      --maxmemory-policy noeviction
      --maxmemory 512mb
      --appendonly yes
      --requirepass ${REDIS_PASSWORD:-snapotter}
    volumes:
      - SnapOtter-redisdata:/data
    restart: unless-stopped
    # --- Security hardening ---
    mem_limit: 1g
    memswap_limit: 1g
    cpus: 2
    pids_limit: 256
    # The official image starts as root and gosu-drops to the redis user, so
    # setuid/setgid + chown caps are required; no-new-privileges and a read-only
    # rootfs are omitted for the same privilege-drop reason as the app.
    cap_drop:
      - ALL
    cap_add:
      - CHOWN
      - DAC_OVERRIDE
      - FOWNER
      - SETGID
      - SETUID
    healthcheck:
      test: ["CMD", "redis-cli", "-a", "${REDIS_PASSWORD:-snapotter}", "--no-auth-warning", "ping"]
      interval: 10s
      timeout: 5s
      retries: 12
      start_period: 10s

# Uncomment to use Docker secrets (requires Docker Swarm or compose v2.23+):
# secrets:
#   snapotter_password:
#     file: ./secrets/snapotter_password.txt
#   oidc_secret:
#     file: ./secrets/oidc_secret.txt

volumes:
  SnapOtter-data:
  SnapOtter-workspace:
  SnapOtter-pgdata:
  SnapOtter-redisdata: