services:
  mcp-obsidian:
    build: .
    image: mcp-obsidian:latest
    # Auto-start with the Docker daemon (e.g. on host boot) and keep
    # restarting on crash; only a manual `docker compose stop` keeps it down.
    restart: unless-stopped
    # MCP talks JSON-RPC over stdio, so stdin must stay open and unbuffered.
    # stdin_open keeps the container alive under `up -d` even with nothing
    # attached yet (otherwise it'd hit EOF on stdin and exit immediately).
    # No TTY: run it as `docker compose run --rm -T mcp-obsidian`.
    stdin_open: true
    tty: false
    extra_hosts:
      # Lets the container reach Obsidian's Local REST API on the host.
      # Docker Desktop (Mac/Windows) provides host.docker.internal natively;
      # this entry makes it resolve on Linux too (Docker 20.10+).
      - "host.docker.internal:host-gateway"
    environment:
      # OBSIDIAN_API_KEY is required; the server exits with a clear error if
      # it's unset. Not enforced here so `docker compose build` doesn't need it.
      OBSIDIAN_API_KEY: ${OBSIDIAN_API_KEY:-}
      OBSIDIAN_HOST: ${OBSIDIAN_HOST:-host.docker.internal}
      OBSIDIAN_PORT: ${OBSIDIAN_PORT:-27124}