Windmill MCP サーバーを SSE 化してサーバーデプロイに対応

- windmill_mcp.py: MCP_TRANSPORT 環境変数で stdio/sse を切り替え可能に
- mcp/Dockerfile: Python 3.12-slim ベースのコンテナイメージを追加
- docker-compose.yml: windmill_mcp サービスを追加（Traefik 経由で windmill-mcp.keinafarm.net に公開）

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

docker-compose.yml

@@ -164,6 +164,37 @@ services:
         - "traefik.http.routers.windmill-debug.tls=true"
         - "traefik.http.services.windmill-debug.loadbalancer.server.port=3003"
 
+  windmill_mcp:
+    build:
+      context: ./mcp
+      dockerfile: Dockerfile
+    container_name: windmill_mcp
+    restart: unless-stopped
+    expose:
+      - 8001
+    environment:
+      - WINDMILL_TOKEN=${WINDMILL_TOKEN}
+      - WINDMILL_URL=https://windmill.keinafarm.net
+      - WINDMILL_WORKSPACE=admins
+      - MCP_TRANSPORT=sse
+      - MCP_HOST=0.0.0.0
+      - MCP_PORT=8001
+    labels:
+      - "traefik.enable=true"
+      # HTTPS ルーター
+      - "traefik.http.routers.windmill-mcp.rule=Host(`windmill-mcp.keinafarm.net`)"
+      - "traefik.http.routers.windmill-mcp.entrypoints=websecure"
+      - "traefik.http.routers.windmill-mcp.tls=true"
+      - "traefik.http.routers.windmill-mcp.tls.certresolver=letsencrypt"
+      - "traefik.http.services.windmill-mcp.loadbalancer.server.port=8001"
+      # HTTP → HTTPS リダイレクト
+      - "traefik.http.routers.windmill-mcp-http.rule=Host(`windmill-mcp.keinafarm.net`)"
+      - "traefik.http.routers.windmill-mcp-http.entrypoints=web"
+      - "traefik.http.routers.windmill-mcp-http.middlewares=windmill-https-redirect"
+    networks:
+      - traefik-net
+    logging: *default-logging
+
 volumes:
   db_data: null
   worker_dependency_cache: null

mcp/Dockerfile

@@ -0,0 +1,14 @@
+FROM python:3.12-slim
+
+WORKDIR /app
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY windmill_mcp.py .
+
+ENV MCP_TRANSPORT=sse
+ENV MCP_HOST=0.0.0.0
+ENV MCP_PORT=8001
+
+CMD ["python", "windmill_mcp.py"]

mcp/windmill_mcp.py

@@ -181,6 +181,115 @@ def windmill_get_job_logs(job_id: str) -> str:
     return "\n".join(result_parts)
 
 
+@mcp.tool()
+def windmill_create_flow(path: str, summary: str, flow_definition: str, description: str = "") -> str:
+    """新しいフローを作成する
+
+    Args:
+        path: フローのパス (例: u/admin/my_flow)
+        summary: フローの概要
+        flow_definition: フローの定義 (JSON形式の文字列)
+        description: フローの詳細説明 (省略可)
+    """
+    try:
+        flow_value = json.loads(flow_definition)
+    except json.JSONDecodeError as e:
+        return f"Error: flow_definitionのJSON形式が不正です: {e}"
+
+    payload = {
+        "path": path,
+        "summary": summary,
+        "description": description,
+        "value": flow_value,
+    }
+
+    resp = httpx.post(
+        _api("flows/create"),
+        headers=_headers(),
+        json=payload,
+        timeout=30,
+    )
+    resp.raise_for_status()
+    return (
+        f"フローを作成しました。\n"
+        f"パス: {path}\n"
+        f"URL: {WINDMILL_URL}/flows/edit/{path}?workspace={WINDMILL_WORKSPACE}"
+    )
+
+
+@mcp.tool()
+def windmill_update_flow(path: str, summary: str, flow_definition: str, description: str = "") -> str:
+    """既存のフローを更新する
+
+    Args:
+        path: フローのパス (例: u/admin/my_flow)
+        summary: フローの概要
+        flow_definition: フローの定義 (JSON形式の文字列)
+        description: フローの詳細説明 (省略可)
+    """
+    try:
+        flow_value = json.loads(flow_definition)
+    except json.JSONDecodeError as e:
+        return f"Error: flow_definitionのJSON形式が不正です: {e}"
+
+    payload = {
+        "path": path,
+        "summary": summary,
+        "description": description,
+        "value": flow_value,
+    }
+
+    resp = httpx.post(
+        _api(f"flows/edit/{path}"),
+        headers=_headers(),
+        json=payload,
+        timeout=30,
+    )
+    resp.raise_for_status()
+    return (
+        f"フローを更新しました。\n"
+        f"パス: {path}\n"
+        f"URL: {WINDMILL_URL}/flows/edit/{path}?workspace={WINDMILL_WORKSPACE}"
+    )
+
+
+@mcp.tool()
+def windmill_create_script(
+    path: str, language: str, content: str, summary: str = "", description: str = ""
+) -> str:
+    """新しいスクリプトを作成する（既存パスの場合は新バージョンを登録する）
+
+    Args:
+        path: スクリプトのパス (例: u/admin/my_script)
+        language: 言語 (python3, deno, bun, bash など)
+        content: スクリプトのソースコード
+        summary: スクリプトの概要 (省略可)
+        description: スクリプトの詳細説明 (省略可)
+    """
+    payload = {
+        "path": path,
+        "language": language,
+        "content": content,
+        "summary": summary,
+        "description": description,
+    }
+
+    resp = httpx.post(
+        _api("scripts/create"),
+        headers=_headers(),
+        json=payload,
+        timeout=30,
+    )
+    resp.raise_for_status()
+    hash_val = resp.text.strip().strip('"')
+    return (
+        f"スクリプトを作成しました。\n"
+        f"パス: {path}\n"
+        f"ハッシュ: {hash_val}\n"
+        f"URL: {WINDMILL_URL}/scripts/edit/{path}?workspace={WINDMILL_WORKSPACE}"
+    )
+
+
 @mcp.tool()
 def windmill_list_scripts(per_page: int = 20) -> str:
     """Windmill のスクリプト一覧を取得する
@@ -228,4 +337,10 @@ def windmill_get_script(path: str) -> str:
 
 
 if __name__ == "__main__":
+    transport = os.environ.get("MCP_TRANSPORT", "stdio")
+    if transport == "sse":
+        host = os.environ.get("MCP_HOST", "0.0.0.0")
+        port = int(os.environ.get("MCP_PORT", "8001"))
+        mcp.run(transport="sse", host=host, port=port)
+    else:
         mcp.run(transport="stdio")