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fix: use external port in MCP config for Docker deployments

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The MCP config was using the internal container port (3000) instead of
the external mapped port. Added EXTERNAL_PORT env var support so clients
get the correct connection URL when running behind Docker port mapping.
This commit is contained in:
Bill Ballou
2026-01-01 09:42:32 -05:00
parent 6e0afa0bfb
commit 88a6740b42
3 changed files with 6 additions and 3 deletions
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1
deploy/dev/docker-compose.yml
View File

@@ -11,6 +11,7 @@ services:
- ./config.yaml:/app/config.yaml:ro - ./config.yaml:/app/config.yaml:ro
environment: environment:
- CONFIG_PATH=/app/config.yaml - CONFIG_PATH=/app/config.yaml
- EXTERNAL_PORT=${PORT:-3000}
healthcheck: healthcheck:
test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen('http://localhost:3000/health')"] test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen('http://localhost:3000/health')"]
interval: 30s interval: 30s

1
deploy/prod/docker-compose.yml
View File

@@ -10,6 +10,7 @@ services:
- ./config.yaml:/app/config.yaml:ro - ./config.yaml:/app/config.yaml:ro
environment: environment:
- CONFIG_PATH=/app/config.yaml - CONFIG_PATH=/app/config.yaml
- EXTERNAL_PORT=${PORT:-3000}
restart: unless-stopped restart: unless-stopped
deploy: deploy:
resources: resources:

7
src/grist_mcp/main.py
View File

@@ -161,13 +161,13 @@ def create_app(config: Config):
return app return app
def _print_mcp_config(port: int, tokens: list) -> None: def _print_mcp_config(external_port: int, tokens: list) -> None:
"""Print Claude Code MCP configuration.""" """Print Claude Code MCP configuration."""
print() print()
print("Claude Code MCP configuration (copy-paste to add):") print("Claude Code MCP configuration (copy-paste to add):")
for t in tokens: for t in tokens:
config = ( config = (
f'{{"type": "sse", "url": "http://localhost:{port}/sse", ' f'{{"type": "sse", "url": "http://localhost:{external_port}/sse", '
f'"headers": {{"Authorization": "Bearer {t.token}"}}}}' f'"headers": {{"Authorization": "Bearer {t.token}"}}}}'
) )
print(f" claude mcp add-json grist-{t.name} '{config}'") print(f" claude mcp add-json grist-{t.name} '{config}'")
@@ -177,6 +177,7 @@ def _print_mcp_config(port: int, tokens: list) -> None:
def main(): def main():
"""Run the SSE server.""" """Run the SSE server."""
port = int(os.environ.get("PORT", "3000")) port = int(os.environ.get("PORT", "3000"))
external_port = int(os.environ.get("EXTERNAL_PORT", str(port)))
config_path = os.environ.get("CONFIG_PATH", "/app/config.yaml") config_path = os.environ.get("CONFIG_PATH", "/app/config.yaml")
if not _ensure_config(config_path): if not _ensure_config(config_path):
@@ -188,7 +189,7 @@ def main():
print(f" SSE endpoint: http://0.0.0.0:{port}/sse") print(f" SSE endpoint: http://0.0.0.0:{port}/sse")
print(f" Messages endpoint: http://0.0.0.0:{port}/messages") print(f" Messages endpoint: http://0.0.0.0:{port}/messages")
_print_mcp_config(port, config.tokens) _print_mcp_config(external_port, config.tokens)
app = create_app(config) app = create_app(config)
uvicorn.run(app, host="0.0.0.0", port=port) uvicorn.run(app, host="0.0.0.0", port=port)