marcus
24b97338ba
Live test on this DSM firmware: SYNO.Docker.Container has no pause/
unpause method ("Method does not exist"). The Container Manager GUI
action menu only exposes Start / Stop / Force-Stop / Restart / Reset —
pause/resume simply isn't a feature here.
The two tools were briefly shipped in 0.4.0 (implemented by symmetry
with the verified stop call) and have now been removed rather than
left as a broken surface. The remaining lifecycle tools
(start_container, stop_container, restart_container) are unaffected.
Tool count: 33 → 31. Closes #7 (won't fix — DSM limitation).
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
107 lines
4.5 KiB
Markdown
107 lines
4.5 KiB
Markdown
# mcp-synology-container
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## Project
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`mcp-synology-container` is an MCP server for managing Docker projects on a
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Synology DiskStation via Container Manager. It exposes tools for projects,
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containers, images, compose files, networks, and system housekeeping.
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---
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## Tech stack
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| **Language** | Python 3.12+, `uv` |
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| **Key deps** | MCP SDK, `httpx`, `keyring`, `click`, `rich` |
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| **Compose paths** | `/volume1/docker/<project>/` (default Synology layout) |
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---
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## Deploy workflow (after every code change)
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```
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1. Claude Code commits and pushes
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2. uv tool install --reinstall git+<repo-url>
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3. Restart Claude Desktop (tray icon → Quit → relaunch)
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```
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**Push retry:** the Gitea remote (`gitea.gecheckt.de`) occasionally
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returns `Unauthorized` on the first push attempt. If `git push` fails
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with an auth error, wait 1 s and retry once before reporting back.
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Only a second consecutive failure is treated as a real auth problem.
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---
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## Implemented tools (31)
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| Category | Tools |
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| Projects | `list_projects`, `get_project_status`, `start_project`, `stop_project`, `redeploy_project`, `create_project`, `delete_project` |
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| Containers | `list_containers`, `get_container_status`, `get_container_logs`, `exec_in_container`, `container_stats`, `delete_container`, `start_container`, `stop_container`, `restart_container` |
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| Compose | `read_compose`, `update_compose`, `update_image_tag`, `update_env_var` |
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| Images | `check_image_updates`, `list_images`, `delete_image`, `inspect_image` |
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| Networks | `list_networks`, `create_network`, `delete_network` |
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| System | `system_df`, `system_prune`, `system_overview` |
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---
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## DSM API quirks
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- **Hash-prefixed container names** — DSM sometimes returns names like
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`a1b2c3d4e5f6_myservice` when the compose service name differs from
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`container_name`. All container tools strip this prefix transparently via
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`_strip_hash_prefix` / `_resolve_container_name`.
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- **Async project start** — `SYNO.Docker.Project/start` returns immediately
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while containers are still initialising. `redeploy_project` polls
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`SYNO.Docker.Project/list` every 2 s for up to 30 s after issuing start.
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- **Image delete** — requires a form-encoded POST with a JSON `images` array
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(confirmed via browser DevTools); uses `DsmClient.post_request()`.
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- **`SYNO.Docker.Image/pull`** — API method exists but behaviour varies by
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DSM version; not exposed as a standalone tool.
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- **`SYNO.Docker.Volume`** — endpoint does not exist; volume management is
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not available via the DSM WebAPI.
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- **`SYNO.Docker.Registry/get`** — does not behave as documented; registry
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listing omitted.
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- **`SYNO.Docker.Container/pause` and `/unpause`** — not implemented in
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DSM Container Manager on this firmware. The action menu only offers
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start/stop/force-stop/restart/reset; calls to `pause`/`unpause` return
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"Method does not exist". `pause_container` and `unpause_container`
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were briefly shipped in 0.4.0 and removed in 0.4.1.
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---
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## Implementation rules
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- Confirmation required before destructive operations: `stop_project`,
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`redeploy_project`, `create_project`, `delete_project`,
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`exec_in_container`, `update_image_tag`, `update_env_var`,
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`update_compose`, `delete_container`, `stop_container`,
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`restart_container`
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- After compose changes: suggest `redeploy_project`
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- DSM errors → human-readable message, no stack traces
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- No secrets in stderr output
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- Type hints and docstrings everywhere
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- Formatter: `ruff format` · Linter: `ruff check` · Tests: `pytest`
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- All text (docstrings, comments, README): English
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- **CHANGELOG.md:** every user-visible change (bug fix, new/changed
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tool, behavior change, security fix, dependency bump) gets a
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`CHANGELOG.md` entry in the same commit — under a `## [Unreleased]`
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heading between releases, which becomes `## [X.Y.Z] - YYYY-MM-DD` on
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version bump. Pure internal cleanup (renames without external callers,
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comment-only edits, ruff autofix) needs no entry. Don't ship a release
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with a stale changelog (this was the C-2 gap that caused 0.2.7 and
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0.2.8 to ship undocumented).
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- **Version consistency:** the package version lives in `pyproject.toml`
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and must stay in sync with `uv.lock` and the `[X.Y.Z]` heading in
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`CHANGELOG.md`. `src/mcp_synology_container/__init__.py` derives
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`__version__` from `importlib.metadata` and is never hand-edited.
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Every version bump touches all three files in the same commit.
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---
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## DSM API reference
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- `cmeans/mcp-synology` (GitHub) — auth, keyring, CLI structure
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- `N4S4/synology-api` `docker_api.py` (GitHub) — `SYNO.Docker.*` calls
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