# Two-container Docker Compose: Hermes Agent + Hermes WebUI
#
# QUICK START:
#   docker compose -f docker-compose.two-container.yml up -d
#   Open http://localhost:8787
#
# This runs the agent and web UI in separate containers connected via shared
# Docker volumes. The WebUI installs the agent's Python dependencies from the
# shared agent source volume at startup.
#
# WHEN TO USE THIS:
#   - You want isolation between the agent gateway and the WebUI
#   - You're already running hermes-agent in its own container
#   - You don't need the dashboard (use docker-compose.three-container.yml for that)
#
# WHEN NOT TO USE THIS:
#   - You hit "Permission denied" trying to share an existing ~/.hermes directory
#     → use docker-compose.yml (single-container) instead, OR
#     → keep this file but switch to NAMED VOLUMES (the default) instead of bind mounts
#   - You're on Podman 3.4 or older without keep-id namespace support
#     → see https://github.com/sunnysktsang/hermes-suite for an all-in-one image
#
# KNOWN LIMITATION (#681): tools triggered from the WebUI run in the WebUI
# container, not the agent container. If you need git/node/etc. on the
# WebUI's filesystem, install them in the WebUI image — or use a single-
# container setup where everything lives in one place.
#
# NOTE ON VOLUMES:
#   This file uses named Docker volumes (hermes-home, hermes-agent-src) which
#   work out of the box on every Docker installation. If you prefer bind mounts
#   to share an existing host directory:
#
#     volumes:
#       hermes-home:
#         driver: local
#         driver_opts:
#           type: none
#           o: bind
#           device: /home/youruser/.hermes
#
#   When using bind mounts, BOTH containers must mount the same host path,
#   AND your host directory must be readable by UID 1000 (the default). Run:
#     id -u && id -g
#   to find your host UID/GID, then put them in a .env file:
#     echo "UID=$(id -u)" >> .env
#     echo "GID=$(id -g)" >> .env

services:
  hermes-agent:
    image: nousresearch/hermes-agent:latest
    container_name: hermes-agent
    command: gateway run
    ports:
      # Gateway API — exposed on localhost only.
      # Other containers on hermes-net reach it via http://hermes-agent:8642.
      # Remove 127.0.0.1: to expose on the host network (e.g. for remote clients).
      - "127.0.0.1:8642:8642"
    volumes:
      # Persist config, state, sessions, skills, memory across restarts
      - hermes-home:/home/hermes/.hermes
      # Expose agent source so the WebUI can install dependencies from it
      - hermes-agent-src:/opt/hermes
    environment:
      - HERMES_HOME=/home/hermes/.hermes
      # Align UID/GID across containers sharing the hermes-home volume.
      # Defaults to 1000 to match WANTED_UID/WANTED_GID in the webui service.
      # The agent image's entrypoint already supports usermod remapping.
      - HERMES_UID=${UID:-1000}
      - HERMES_GID=${GID:-1000}
      # Bind-mount permission handling for the agent — narrow set of overrides.
      # NOTE: The agent's HERMES_HOME_MODE applies to the HERMES_HOME *directory*
      # mode (default 0700) — NOT to credential files like the WebUI's variant.
      # If you set this, you MUST keep the owner-execute bit so the agent can
      # traverse its own home directory. 0640 BREAKS the agent (no x bit → no
      # traversal). Use 0750 for group-traversable or 0701 for x-only.
      # The agent's container detection (/.dockerenv) already auto-skips
      # credential chmod inside Docker, so HERMES_SKIP_CHMOD is redundant here.
      # - HERMES_HOME_MODE=0750
    restart: unless-stopped
    networks:
      - hermes-net

  hermes-webui:
    image: ghcr.io/nesquena/hermes-webui:latest
    container_name: hermes-webui
    depends_on:
      - hermes-agent
    ports:
      - "127.0.0.1:8787:8787"
    volumes:
      # Same hermes home as the agent — shares config, sessions, state
      - hermes-home:/home/hermeswebui/.hermes
      # Agent source mounted where docker_init.bash expects it.
      # Mounted read-only — the WebUI only reads this volume to install
      # the agent's Python dependencies at startup (`uv pip install`).
      # Read-only enforces that defence-in-depth at the kernel layer.
      - hermes-agent-src:/home/hermeswebui/.hermes/hermes-agent:ro
      # Workspace directory — browse and edit files from the WebUI.
      # Adapt the host path to your project directory.
      # Override with: HERMES_WORKSPACE=/your/path docker compose up
      # ${HOME} is used rather than `~` so the default resolves the same way
      # across Linux, macOS, WSL2, and Docker Desktop on Windows.
      - ${HERMES_WORKSPACE:-${HOME}/workspace}:/workspace
    environment:
      - HERMES_WEBUI_HOST=0.0.0.0
      - HERMES_WEBUI_PORT=8787
      - HERMES_WEBUI_STATE_DIR=/home/hermeswebui/.hermes/webui
      # Match your host user's UID/GID for correct file permissions.
      # In two-container setups the WebUI auto-detects UID/GID from the shared
      # hermes-home volume, but you can override explicitly if needed (#668):
      # Run `id -u` and `id -g` to find your values.
      # On macOS, UIDs start at 501 — set these in a .env file:
      #   echo "UID=$(id -u)" >> .env && echo "GID=$(id -g)" >> .env
      - WANTED_UID=${UID:-1000}
      - WANTED_GID=${GID:-1000}
      # Optional: set a password for remote access
      # - HERMES_WEBUI_PASSWORD=your-secret-password
      # Bind-mount permission handling for the WebUI (fixes #1389, #1399).
      # NOTE: WebUI's HERMES_HOME_MODE is a credential-file threshold (allow
      # group bits on .env/.signing_key/etc.), DIFFERENT from the agent's
      # which applies to the HERMES_HOME directory itself. 0640 is correct
      # for the WebUI; do NOT copy this value to the agent service block.
      # - HERMES_SKIP_CHMOD=1
      # - HERMES_HOME_MODE=0640
    restart: unless-stopped
    networks:
      - hermes-net

networks:
  hermes-net:
    driver: bridge

volumes:
  # IMPORTANT — upgrading the agent image:
  #   The `hermes-agent-src` volume is initialised from the agent image's
  #   `/opt/hermes` on first `up`, and Docker reuses the volume verbatim on
  #   later runs — even after `docker pull` of a newer agent image. After
  #   upgrading the agent image, run:
  #
  #     docker compose down
  #     docker volume rm <project>_hermes-agent-src
  #     docker compose pull
  #     docker compose up -d
  #
  #   The full procedure (and why) is documented in docs/docker.md.
  hermes-home:
  hermes-agent-src:
