bambuddy/docker-compose.yml

services:
  bambuddy:
    image: ghcr.io/maziggy/bambuddy:latest
    build: .
    # Usage:
    #   docker compose up -d          → pulls pre-built image from ghcr.io
    #   docker compose up -d --build  → builds locally from source
    container_name: bambuddy
    # File ownership inside the data and logs volumes is normalised by the
    # entrypoint at startup (chowns to PUID:PGID and drops privileges via
    # gosu before running the app). Override PUID / PGID below to match
    # your host user if needed — defaults to 1000:1000 to match the
    # historical compose `user:` directive.
    #
    # Allow binding to privileged ports (322, 990) as non-root user — required
    # for FTPS in every VP mode and for the RTSPS camera proxy in proxy mode +
    # non-proxy modes that have a target printer configured. Without this, the
    # FTP and RTSP listeners silently fail.
    cap_add:
      - NET_BIND_SERVICE
    #
    # LINUX: Use host mode for printer discovery and camera streaming
    network_mode: host
    #
    # macOS/WINDOWS: Docker Desktop doesn't support host mode.
    # Comment out "network_mode: host" above and uncomment "ports:" below.
    # Note: Printer discovery won't work - add printers manually by IP.
    #ports:
    #  - "${PORT:-8000}:8000"
    #  - "3000:3000"                  # Virtual printer bind/detect
    #  - "3002:3002"                  # Virtual printer bind/detect
    #  - "8883:8883"                  # Virtual printer MQTT
    #  - "990:990"                    # Virtual printer FTP control
    #  - "6000:6000"                  # Virtual printer file transfer tunnel
    #  - "322:322"                    # Virtual printer RTSP camera (X1/H2/P2; proxy mode + non-proxy modes with a target printer)
    #  - "2024-2026:2024-2026"        # Virtual printer proprietary ports (A1/P1S)
    #  - "50000-50029:50000-50029"    # Virtual printer FTP passive data (3 VPs × 10-port slice)
    #
    # FTP passive-mode port slicing (#1646): non-proxy VPs (Archive / Review /
    # Queue modes) get a 10-port slice each, allocated by VP id — VP 1 →
    # 50000-50009, VP 2 → 50010-50019, VP 3 → 50020-50029, etc. The default
    # exposure above covers 3 VPs; widen the range to cover more
    # (`50000-500N9` where N = vp_count - 1). Proxy-mode VPs forward the
    # real printer's full 50000-50100 range — if you use proxy mode, expose
    # `50000-50100:50000-50100` instead.
    #
    # Why narrow this matters on bridge mode: with Docker's default
    # userland-proxy (true), every exposed port spawns one docker-proxy host
    # process per address family (IPv4 + IPv6). The original 1001-port range
    # spawned ~2000 such processes, pinning ~3.5 GB of host RAM that doesn't
    # appear in `docker stats` (host-level, not container-level). 30 ports
    # → ~60 processes → ~210 MB instead.
    #
    # Bridge mode is the normal setup for any Linux host that runs
    # Bambuddy alongside other services (NAS, multi-tenant Docker VM,
    # Synology DSM, Unraid) — `network_mode: host` would conflict with
    # ports those other services already bind. Bambuddy uses host mode by
    # default because SSDP printer discovery needs L2 multicast, but it's
    # a deliberate trade-off, not a security-blind default; setups that
    # forgo discovery (add printers by IP) can stay on bridge with the
    # narrowed range above.
    volumes:
      - bambuddy_data:/app/data
      - bambuddy_logs:/app/logs
      #
      # OPTIONAL — only needed if you ALSO run a native install of Bambuddy
      # on the same host and want both installs to share the same Virtual
      # Printer CA certificate (so the slicer only has to trust one CA).
      # Most Docker-only users should leave this commented out — the
      # entrypoint will keep the VP data inside the named volume above.
      # If uncommented, the entrypoint chowns the host directory to
      # PUID:PGID on first start so the container user can write to it.
      #- ./virtual_printer:/app/data/virtual_printer
      #
      # Mount scheduled backup output to NAS or external storage
      # Backups default to DATA_DIR/backups/ inside the data volume.
      # Uncomment to store them externally (e.g. on a NAS share).
      #- /path/to/nas/bambuddy-backups:/app/data/backups
      #
      # Tailscale integration (optional): mount the host's tailscaled socket
      # so Bambuddy can request Let's Encrypt certs for virtual printers via
      # your tailnet's MagicDNS name. Requires:
      #   1. Tailscale installed + `tailscale up` completed on the host
      #   2. `sudo tailscale set --operator=<container-user>` on the host so
      #      the user running the container can call `tailscale cert`
      # Without this mount, the Tailscale toggle in the UI is harmless —
      # Bambuddy falls back to self-signed certs.
      #- /var/run/tailscale/tailscaled.sock:/var/run/tailscale/tailscaled.sock
      #
      # Using a self signed certificate for Home Assistant
      # Add your certificate to certs directory and mount it to the container.
      # The certificate will be added to the system trust store on container startup.
      # Enable the system trust store with the USE_SYSTEM_TRUST_STORE env var to
      # have Bambuddy trust the certificate.
      # - /path/to/certs:/usr/local/share/ca-certificates
      #
      # External library folders. Mount the host paths the operator wants
      # users to be able to register as external folders. The in-container
      # paths chosen here MUST appear in BAMBUDDY_EXTERNAL_ROOTS below.
      # Read-only (:ro) is recommended unless you want users uploading
      # files back to the host share.
      #- /mnt/nas/3d-prints:/external/nas:ro
      #- /srv/library:/external/projects:ro
    environment:
      - TZ=${TZ:-Europe/Berlin}
      # User/group the container drops to after the entrypoint normalises
      # ownership on /app/data and /app/logs. Match your host user (run
      # `id -u` / `id -g`) if you want files written by the container to
      # show up as your user on the host. Defaults to 1000:1000.
      - PUID=${PUID:-1000}
      - PGID=${PGID:-1000}
      # Port BamBuddy runs on (default: 8000)
      # Usage: PORT=8080 docker compose up -d
      - PORT=${PORT:-8000}
      # Directory this compose file lives in, so Settings → Updates can print
      # an update command you can paste from anywhere instead of one that only
      # works if you are already in the right directory (#2664). Uncomment to
      # have Compose fill it in from the shell you run `docker compose` in; the
      # field is also editable in Settings if you would rather set it there or
      # if you drive Compose with `-f` from elsewhere.
      #- BAMBUDDY_COMPOSE_DIR=${PWD}
      # Virtual printer: Set to the Docker host's IP when using bridge mode (ports:).
      # Required for FTP passive mode to work behind NAT.
      # Example: VIRTUAL_PRINTER_PASV_ADDRESS=192.168.1.100
      #- VIRTUAL_PRINTER_PASV_ADDRESS=
      #
      # External PostgreSQL (optional — uses SQLite by default)
      # Example: DATABASE_URL=postgresql+asyncpg://bambuddy:password@db-host:5432/bambuddy
      #- DATABASE_URL=
      #
      # Slicer API sidecar (optional — Settings → "Use Slicer API" toggles this on).
      # Default points at the OrcaSlicer sidecar on the docker host; change if you
      # run the sidecar on a different host/port. The matching docker-compose.yml
      # for the sidecars lives in the orca-slicer-api fork
      # (https://github.com/maziggy/orca-slicer-api).
      #- SLICER_API_URL=http://localhost:3003
      #
      # MFA at-rest encryption key (#1219). Auto-generated to
      # DATA_DIR/.mfa_encryption_key on first startup if unset. Override here
      # to manage the key out-of-band (e.g. via a secret manager).
      #- MFA_ENCRYPTION_KEY=
      #
      # External library folders (GHSA-r2qv follow-up). Empty default
      # disables the "Add external folder" feature; set to one or more
      # colon-separated absolute paths INSIDE THE CONTAINER to opt in.
      # The paths must also be bind-mounted from the host — uncomment
      # the matching volume snippet below.
      # Example for a single NAS mount:
      #- BAMBUDDY_EXTERNAL_ROOTS=/external/nas
      # Example for two roots:
      #- BAMBUDDY_EXTERNAL_ROOTS=/external/nas:/external/projects
      #
      # Enable System Trust Store for certificate validation (e.g. for local Home Assistant)
      # You also need to mount your certificates to the container (see volumes section above).
      # - USE_SYSTEM_TRUST_STORE=true
    restart: unless-stopped
    # Docker's default is 10s, after which it SIGKILLs. Bambuddy shuts down in
    # well under that (uvicorn caps its wait on in-flight requests at 5s, then
    # the app checkpoints the SQLite WAL, disconnects MQTT and stops the virtual
    # printers), but a Pi with several virtual printers and a slow SD card can be
    # nearer the limit than is comfortable. The headroom costs nothing — the
    # container exits as soon as it is done, not when the timer expires.
    stop_grace_period: 30s

  # Optional: External PostgreSQL database
  # Uncomment to run Postgres alongside Bambuddy (or use an external Postgres host)
  #postgres:
  #  image: postgres:16-alpine
  #  container_name: bambuddy-db
  #  restart: unless-stopped
  #  environment:
  #    POSTGRES_USER: bambuddy
  #    POSTGRES_PASSWORD: changeme
  #    POSTGRES_DB: bambuddy
  #  volumes:
  #    - bambuddy_pgdata:/var/lib/postgresql/data
  #  ports:
  #    - "5432:5432"

volumes:
  bambuddy_data:
  bambuddy_logs:
  #bambuddy_pgdata: