windmill/docker-compose.yml

version: "3.7"

x-logging: &default-logging
  driver: "json-file"
  options:
    max-size: "${LOG_MAX_SIZE:-20m}"
    max-file: "${LOG_MAX_FILE:-10}"
    compress: "true"

services:
  db:
    deploy:
      # To use an external database, set replicas to 0 and set DATABASE_URL to the external database url in the .env file
      replicas: 1
    image: postgres:16
    shm_size: 1g
    restart: unless-stopped
    volumes:
      - db_data:/var/lib/postgresql/data
    expose:
      - 5432
    environment:
      POSTGRES_PASSWORD: changeme
      POSTGRES_DB: windmill
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U postgres"]
      interval: 10s
      timeout: 5s
      retries: 5
    logging: *default-logging

  windmill_server:
    image: ${WM_IMAGE}
    pull_policy: always
    deploy:
      replicas: 1
    restart: unless-stopped
    expose:
      - 8000
      - 2525
    environment:
      - DATABASE_URL=${DATABASE_URL}
      - MODE=server
    depends_on:
      db:
        condition: service_healthy
    volumes:
      - worker_logs:/tmp/windmill/logs

    logging: *default-logging

  # Docker-in-Docker sidecar: a privileged, root Docker daemon for running
  # containers from scripts. Any user who can run a script can reach it (workers
  # share the script network namespace), so it is root-equivalent.
  # => Trusted, single-tenant use only. Not for untrusted/multi-tenant workloads.
  # Opt-in: uncomment DOCKER_HOST + depends_on in windmill_worker, then run
  # `docker compose --profile dind up -d`. TLS hardening: see comments below.
  dind:
    image: docker:dind
    # Rootless alternative: a docker-job escape lands as an unprivileged host
    # user instead of root (recommended when docker-job users aren't fully
    # host-trusted). The outer container stays privileged, but the daemon runs
    # unprivileged. Needs cgroup v2 + a recent kernel, or /dev/fuse for
    # fuse-overlayfs (else it falls back to the slow vfs driver). To use it, swap
    # the image and the data volume path (and add the /dev/fuse device):
    #   image: docker:dind-rootless
    #   volumes: - dind-data:/home/rootless/.local/share/docker
    #   devices: ["/dev/fuse"]
    profiles: ["dind"] # off by default
    privileged: true
    restart: unless-stopped
    environment:
      DOCKER_TLS_CERTDIR: "" # plaintext on 2375; set to "/certs" for TLS on 2376
    volumes:
      - dind-data:/var/lib/docker
      # TLS: share the generated client certs with the worker
      # - dind-certs-ca:/certs/ca
      # - dind-certs-client:/certs/client
    expose:
      - 2375
      # - 2376 # TLS port (when DOCKER_TLS_CERTDIR is set)
    healthcheck:
      test: ["CMD", "docker", "info"]
      interval: 10s
      timeout: 5s
      retries: 5
    logging: *default-logging

  windmill_worker:
    image: ${WM_IMAGE}
    pull_policy: always
    deploy:
      replicas: 3
      resources:
        limits:
          memory: 2048M
          # for GB, use syntax '2Gi'
    restart: unless-stopped
    # Uncomment to enable PID namespace isolation (recommended for security)
    # Requires privileged mode for --mount-proc flag
    # See: https://www.windmill.dev/docs/advanced/security_isolation
    privileged: true
    environment:
      - DATABASE_URL=${DATABASE_URL}
      - MODE=worker
      - WORKER_GROUP=default
      # If running with non-root/non-windmill UID (e.g., user: "1001:1001"),
      # add: - HOME=/tmp
      - FAVOR_UNSHARE_PID=true
      # Run containers from scripts via the dind sidecar (opt-in, trusted only;
      # see the dind service). TLS variant: use the 2376 lines instead.
      # - DOCKER_HOST=tcp://dind:2375
      # - DOCKER_HOST=tcp://dind:2376
      # - DOCKER_TLS_VERIFY=1
      # - DOCKER_CERT_PATH=/certs/client
    depends_on:
      db:
        condition: service_healthy
      # Uncomment when enabling dind (see DOCKER_HOST above):
      # dind:
      #   condition: service_healthy
    # to mount the worker folder to debug, KEEP_JOB_DIR=true and mount /tmp/windmill
    volumes:
      - worker_dependency_cache:/tmp/windmill/cache
      - worker_logs:/tmp/windmill/logs
      # TLS dind: mount the client certs (read-only)
      # - dind-certs-client:/certs/client:ro
      ## WARNING: mounting the host Docker socket grants user scripts full access to
      ## the host Docker daemon, enabling host filesystem access and privilege escalation.
      ## Only use this if you fully trust all users who can run scripts.
      ## To use it, remove the DOCKER_HOST env var and dind depends_on above,
      ## and uncomment the line below:
      # - /var/run/docker.sock:/var/run/docker.sock

    logging: *default-logging

  ## This worker is specialized for "native" jobs. Native jobs run in-process and thus are much more lightweight than other jobs
  windmill_worker_native:
    # Use ghcr.io/windmill-labs/windmill-ee:main for the ee
    image: ${WM_IMAGE}
    pull_policy: always
    deploy:
      replicas: 1
      resources:
        limits:
          memory: 2048M
          # for GB, use syntax '2Gi'
    restart: unless-stopped
    # Uncomment to enable PID namespace isolation (recommended for security)
    # Requires privileged mode for --mount-proc flag
    # See: https://www.windmill.dev/docs/advanced/security_isolation
    environment:
      - DATABASE_URL=${DATABASE_URL}
      - MODE=worker
      - WORKER_GROUP=native
      - NATIVE_MODE=true
      - SLEEP_QUEUE=200
    depends_on:
      db:
        condition: service_healthy
    volumes:
      - worker_logs:/tmp/windmill/logs
    logging: *default-logging
  # This worker is specialized for reports or scraping jobs. It is assigned the "reports" worker group which has an init script that installs chromium and can be targeted by using the "chromium" worker tag.
  # windmill_worker_reports:
  #   image: ${WM_IMAGE}
  #   pull_policy: always
  #   deploy:
  #     replicas: 1
  #     resources:
  #       limits:
  #         memory: 2048M
  #         # for GB, use syntax '2Gi'
  #   restart: unless-stopped
  #   # Uncomment to enable PID namespace isolation (recommended for security)
  #   # Requires privileged mode for --mount-proc flag
  #   # See: https://www.windmill.dev/docs/advanced/security_isolation
  #   privileged: true
  #   environment:
  #     - DATABASE_URL=${DATABASE_URL}
  #     - MODE=worker
  #     - WORKER_GROUP=reports
  #     - FAVOR_UNSHARE_PID=true
  #   depends_on:
  #     db:
  #       condition: service_healthy
  #   # to mount the worker folder to debug, KEEP_JOB_DIR=true and mount /tmp/windmill
  #   volumes:
  #     - worker_dependency_cache:/tmp/windmill/cache
  #     - worker_logs:/tmp/windmill/logs

  # The indexer powers full-text job and log search, an EE feature.
  windmill_indexer:
    image: ${WM_IMAGE}
    pull_policy: always
    deploy:
      replicas: 0 # set to 1 to enable full-text job and log search
    restart: unless-stopped
    expose:
      - 8002
    environment:
      - PORT=8002
      - DATABASE_URL=${DATABASE_URL}
      - MODE=indexer
    depends_on:
      db:
        condition: service_healthy
    volumes:
      - windmill_index:/tmp/windmill/search
      - worker_logs:/tmp/windmill/logs
    logging: *default-logging

  # Combined extra services: LSP, Multiplayer, and Debugger
  # Each service can be enabled/disabled via environment variables:
  #   - ENABLE_LSP=true (default) - Language Server Protocol for code intelligence
  #   - ENABLE_MULTIPLAYER=false - Real-time collaboration (Enterprise Edition)
  #   - ENABLE_DEBUGGER=false - Interactive debugging via DAP WebSocket
  windmill_extra:
    image: ghcr.io/windmill-labs/windmill-extra:latest
    pull_policy: always
    restart: unless-stopped
    expose:
      - 3001 # LSP
      - 3002 # Multiplayer
      - 3003 # Debugger
    environment:
      - ENABLE_LSP=true
      - ENABLE_MULTIPLAYER=false # Set to true to enable multiplayer (Enterprise Edition)
      - ENABLE_DEBUGGER=true # Set to true to enable debugger
      - DEBUGGER_PORT=3003 # Debugger service port
      - ENABLE_NSJAIL=false # Set to true for nsjail sandboxing (requires privileged: true)
      - REQUIRE_SIGNED_DEBUG_REQUESTS=false # Set to true to require JWT tokens for debug sessions
      - WINDMILL_BASE_URL=http://windmill_server:8000
    volumes:
      - lsp_cache:/pyls/.cache
    logging: *default-logging

  caddy:
    image: ghcr.io/windmill-labs/caddy-l4:latest
    restart: unless-stopped
    # Configure the mounted Caddyfile and the exposed ports or use another reverse proxy if needed
    volumes:
      - ./Caddyfile:/etc/caddy/Caddyfile
      - caddy_data:/data
      # - ./certs:/certs # Provide custom certificate files like cert.pem and key.pem to enable HTTPS - See the corresponding section in the Caddyfile
    ports:
      # To change the exposed port, simply change 80:80 to <desired_port>:80. No other changes needed
      - 80:80
      - 25:25
      # - 443:443 # Uncomment to enable HTTPS handling by Caddy
    environment:
      - BASE_URL=":80"
      # - BASE_URL=":443" # uncomment and comment line above to enable HTTPS via custom certificate and key files
      # - BASE_URL=mydomain.com # Uncomment and comment line above to enable HTTPS handling by Caddy
    logging: *default-logging

volumes:
  db_data: null
  worker_dependency_cache: null
  worker_logs: null
  worker_memory: null
  windmill_index: null
  lsp_cache: null
  caddy_data: null
  dind-data: null
  # Uncomment for dind TLS (see the dind service):
  # dind-certs-ca: null
  # dind-certs-client: null