Podman MCP Server

Instructions

Implementation Reference

• main.py:164-167 (handler)

  Handler function for container_info tool decorated with @mcp.tool for automatic registration and schema via Pydantic Field. Executes 'podman inspect' on the container.
  @mcp.tool(title="Container info", description="Inspect a container by name or ID.") def container_info(container: str = Field(..., description="Container name or ID")) -> str: result = run_podman(["inspect", container]) return result["stdout"] if result["success"] else f"Error: {result['stderr']}"
• main_b.py:501-504 (handler)

  Async class method handler for the container_info tool. Extracts container from args, runs 'podman inspect', returns result in dict format.
  async def container_info(self, args: Dict[str, Any]) -> Dict[str, Any]: container = args.get("container") result = run_podman(["inspect", container]) return {"output": result["stdout"] if result["success"] else f"Error: {result['stderr']}"}
• main_b.py:186-195 (schema)

  Explicit JSON schema for container_info tool input, defining required 'container' string parameter.
  inputSchema={ "type": "object", "properties": { "container": { "type": "string", "description": "Container name or ID" } }, "required": ["container"] }
• main_b.py:459-472 (registration)

  Registration dictionary mapping 'container_info' tool name to its handler method.
  tool_handlers = { "list_containers": self.list_containers, "container_info": self.container_info, "start_container": self.start_container, "stop_container": self.stop_container, "restart_container": self.restart_container, "container_logs": self.container_logs, "run_container": self.run_container, "remove_container": self.remove_container, "exec_container": self.exec_container, "list_images": self.list_images, "pull_image": self.pull_image, "container_stats": self.container_stats, }
• main_b.py:183-196 (registration)

  Tool object registration in the tools list including name, description, and schema for container_info.
  Tool( name="container_info", description="Inspect a container by name or ID", inputSchema={ "type": "object", "properties": { "container": { "type": "string", "description": "Container name or ID" } }, "required": ["container"] } ),
• main_b.py:50-72 (helper)

  Helper function used by container_info to execute podman commands and handle output/errors.
  def run_podman(args: List[str]) -> Dict[str, Any]: """Run a podman command and capture output""" try: cmd = ["podman"] + args logger.info(f"Running command: {' '.join(cmd)}") result = subprocess.run( cmd, capture_output=True, text=True, timeout=30 ) return { "success": result.returncode == 0, "stdout": result.stdout.strip(), "stderr": result.stderr.strip(), "returncode": result.returncode, } except subprocess.TimeoutExpired: logger.error("Command timed out") return {"success": False, "stdout": "", "stderr": "Command timed out", "returncode": -1} except Exception as e: logger.error(f"Command error: {e}") return {"success": False, "stdout": "", "stderr": str(e), "returncode": -1}