Two changes to the synced opencode config: - Model provider. opencode can't list models from a custom OpenAI-compatible provider itself, so sync.sh queries the gateway's /v1/models with the user's key and materializes the map client-side. New gateway models land on every box at the next sync with no config edit. If discovery fails the previous map is carried over, so a gateway hiccup never empties the list. - Aggregate MCP endpoint. One entry at /mcp/ (trailing slash required — the bare path 307-redirects and MCP clients don't follow it) exposes every server the key can access, replacing the per-server gitea entry. sync.sh also exports OPENCODE_CONFIG: opencode does not auto-load extra files from its config dir, so without it the synced file was ignored. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
78 lines
3.9 KiB
Markdown
78 lines
3.9 KiB
Markdown
# mcp-config — shared MCP gateway config for laptops
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Single source of truth for the **shared** MCP servers every covert-gpt user
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gets through the LiteLLM gateway (`llm.covert-gpt.com`). Users install once;
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their config then refreshes automatically on each new shell.
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This repo lives in Gitea at `public/dotfiles`. (It is mirrored from the
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`ai-k8s-iac` repo under `mcp-config/`; edit it there or here and keep them in
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sync — the laptops pull from Gitea's `main`.)
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## How it works
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- `opencode.gateway.json` — the shared base config: the `covert-gpt` model
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provider (LiteLLM's OpenAI-compatible endpoint at
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`https://llm.covert-gpt.com/v1`, models map left empty — it is filled by
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discovery at sync time) and a single MCP entry for the gateway's
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**aggregate** endpoint `https://llm.covert-gpt.com/mcp/` (trailing slash
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required; the bare path 307-redirects, which MCP clients don't follow).
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That one endpoint exposes every MCP server the user's key can access, so
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new gateway servers need no client config change at all. **Identical for
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every user**: the per-user key is injected via `{env:LITELLM_KEY}`, never
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written into the file.
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- `sync.sh` — sourced from each user's shell rc. On a new shell (throttled
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~1h) it pulls the base config from Gitea, queries the gateway's
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`/v1/models` with the user's key to **auto-discover models** (opencode
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can't list models from a custom provider itself, so the map is
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materialized client-side; if discovery fails the previous map is carried
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over), deploys the result to `~/.config/opencode/opencode.gateway.json`,
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and exports `LITELLM_KEY` (from `~/.config/mcp-sync/key`) plus
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`OPENCODE_CONFIG` (pointing at the deployed file — opencode does NOT
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auto-load extra files in its config dir, so without this export the file
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is ignored). Silent + non-fatal: a Gitea hiccup never breaks the shell,
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last-good config stays in place.
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- `install.sh` — one-time bootstrap (curl-pipe). Fetches `sync.sh`, stores the
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user's key (0600), and adds the rc hook.
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opencode merges the `OPENCODE_CONFIG` file on top of the user's global
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`~/.config/opencode/opencode.json` (and under any project `opencode.json`),
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so the synced config coexists with each user's own settings and any
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**local-only** MCP servers (e.g. a client-side `kubernetes` pointed at their
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own kubeconfig). Sync never touches those.
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## User setup (one time)
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Each user needs a LiteLLM **virtual key** scoped to the gateway servers (see
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`charts/inference/MCP-GATEWAY.md` in ai-k8s-iac for how keys are minted). Then:
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```sh
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curl -fsSL https://git.nic-oconnor.com/public/dotfiles/raw/branch/main/mcp-config/install.sh | sh
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# (prompts for the sk-... key; or pass it: ... | LITELLM_KEY=sk-... sh)
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```
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Open a new terminal, run `opencode`, and the gateway tools are there.
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## Adding a gateway server or model (admin)
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Register it on the gateway (`charts/inference/values.yaml` →
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`proxy_config.mcp_servers` for MCP servers, `model_list` for models),
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deploy, smoke-test. That's it — clients auto-discover both: MCP servers
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through the aggregate `/mcp/` endpoint, models via the `/v1/models` query
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in `sync.sh`. Users pick them up within the sync TTL (or immediately on a
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new shell). `opencode.gateway.json` here only needs editing for structural
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changes (a new provider, endpoint URLs).
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For **per-user / per-target** tools (cluster access, etc.) do NOT add them
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here — those run client-side with the user's own credentials. See
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`charts/inference/MCP-GATEWAY.md`.
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## Notes / caveats
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- **Local-server precedence**: opencode merges with later-config-wins on key
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conflicts. If a user names a local server the same as a gateway one, theirs
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wins. Use distinct names.
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- **Key rotation**: re-run `install.sh` (or edit `~/.config/mcp-sync/key`).
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- **Other clients**: this ships an opencode config. Claude Code / open-webui
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would need their own equivalent file + a parallel sync entry; not done yet.
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- **Throttle**: override with `MCP_SYNC_TTL=0` to force a pull every shell.
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