arcade-mcp/examples/mcp_servers/authorization/docker/Dockerfile
Eric Gustin 98fd13c4ed
Front-Door Auth (#696)
# Valuable references for the reviewer:
- Docs PR: https://github.com/ArcadeAI/docs/pull/583
- Implements Phase 1 of the following planning doc:
https://linear.app/arcadedev/project/arcade-mcp-supports-mcp-auth-front-door-auth-7cbaa20cb054/overview


https://github.com/user-attachments/assets/79ad43fd-f5e8-4793-a1dd-18b35acefdc3

# PR Description
Adds OAuth 2.1 Resource Server authentication to arcade-mcp-server,
enabling HTTP MCP servers to validate Bearer tokens on every request.
This unlocks tool-level authorization and secrets support for HTTP
servers.

- Multiple authorization server support
- Granular token validation options (verify_exp, verify_iat, verify_iss)
- Environment variable configuration
- OAuth discovery metadata endpoint
(/.well-known/oauth-protected-resource)
- Extracts sub claim from token as context.user_id
- Lifts transport restrictions for tools requiring auth/secrets on HTTP
when protected

```python
from arcade_mcp_server import MCPApp
from arcade_mcp_server.resource_server import ResourceServerAuth, AuthorizationServerEntry

resource_server_auth = ResourceServerAuth(
    canonical_url="http://127.0.0.1:8000/mcp",
    authorization_servers=[
        AuthorizationServerEntry(
            authorization_server_url="https://auth.example.com",
            issuer="https://auth.example.com",
            jwks_uri="https://auth.example.com/jwks",
        )
    ],
)

app = MCPApp(name="my_server", version="1.0.0", auth=resource_server_auth)
```

# Testing
Beyond the comprehensive unit tests, I also manually tested end-to-end
with WorkOS Authkit (DCR) and KeyCloak (non-DCR).

# Future Work
- CIMD support
- An `ArcadeResourceServer` to make adding front-door auth super easy
when using Arcade's Auth Server



<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> Adds OAuth 2.1 front-door auth (JWKS validation + OAuth discovery) and
propagates user identity to tools, enabling auth/secret-requiring tools
over HTTP.
> 
> - **Authentication (Front-Door OAuth 2.1)**
> - New `resource_server` module with `ResourceServerAuth`
(multi-authorization-server, metadata) and `JWKSTokenValidator`
(JWKS-based JWT validation) plus granular validation options.
> - ASGI `ResourceServerMiddleware` validates Bearer tokens on every
HTTP request and injects `resource_owner`.
> - OAuth discovery endpoint via FastAPI router at
`/.well-known/oauth-protected-resource[/<path>]`.
> - **Integration**
> - `MCPApp`/`worker` accept `auth`/`resource_server_validator`, mount
middleware, expose discovery; logs accepted auth servers.
> - HTTP transport (`http_streamable`) carries `SessionMessage` with
`resource_owner` from request → session.
> - `Context`/`Session`/`Server` plumb `resource_owner`; `Server`
selects `user_id` preferring token `sub`.
> - **Behavior Changes**
> - HTTP transport restriction lifted for tools requiring
`authorization`/`secrets` when request is authenticated; otherwise
blocked with actionable error.
> - **Configuration**
> - Env-var based auth config via `MCP_RESOURCE_SERVER_*` in
`MCPSettings.ResourceServerSettings`; `.env` auto-load.
> - **Telemetry**
>   - Usage tracking records `resource_server_type` on server start.
> - **Examples**
> - New `examples/mcp_servers/authorization` sample server (HTTP auth,
secrets, Reddit tool) with Docker setup.
> - **Tests**
> - Extensive unit tests for validators, middleware, env config,
multi-AS, transport rules, and app integration.
> - **Version**
> - Bump `arcade-mcp-server` to `1.12.0`; minor docstring tweak in
`__init__.py`.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
d1116cdcafb0c7cb8f91e66682eb1fbae380da31. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->





Resolves TOO-152
2025-12-11 12:51:20 -08:00

45 lines
1.5 KiB
Docker

FROM ghcr.io/astral-sh/uv:python3.11-bookworm-slim
# Create non-root user
RUN useradd -m -u 1000 appuser
WORKDIR /app
# Copy project files
COPY pyproject.toml uv.lock ./
COPY src/ ./src/
# Auto-detect package name from pyproject.toml
# First try using Python's tomllib
# Fallback to grep/sed for compatibility
RUN PACKAGE_NAME=$(python3 -c "import tomllib; f=open('pyproject.toml','rb'); data=tomllib.load(f); print(data['project']['name'])" 2>/dev/null || \
grep -E '^name\s*=' pyproject.toml | head -1 | sed -E "s/.*name\s*=\s*[\"']([^\"']+)[\"'].*/\1/" || \
grep -E '^name\s*=' pyproject.toml | head -1 | sed -E 's/.*name\s*=\s*([^ ]+).*/\1/') && \
if [ -z "$PACKAGE_NAME" ]; then \
echo "ERROR: Could not detect package name from pyproject.toml" && exit 1; \
fi && \
echo "Detected package: $PACKAGE_NAME" && \
echo "$PACKAGE_NAME" > /tmp/package_name.txt
# Install dependencies
RUN uv sync --frozen --no-dev
# Change ownership to non-root user
RUN chown -R appuser:appuser /app
USER appuser
# Expose the port
EXPOSE 8001
# Run the server from src/<package>/server.py
CMD PACKAGE_NAME=$(cat /tmp/package_name.txt) && \
if [ -f "src/${PACKAGE_NAME}/server.py" ]; then \
uv run src/${PACKAGE_NAME}/server.py; \
else \
echo "ERROR: Could not find server.py at src/${PACKAGE_NAME}/server.py" && \
echo " Package detected: ${PACKAGE_NAME}" && \
echo " Available directories in src/:" && \
ls -la src/ 2>/dev/null || echo " src/ directory not found" && \
exit 1; \
fi