Kubernetes MCP Server

Instructions

Implementation Reference

• server.js:1449-1457 (handler)

  The core handler logic for the 'list-configmaps' tool. It extracts the optional namespace from arguments, constructs a 'kubectl get configmaps' command, executes it via execAsync, and returns the stdout as text content.

  case "list-configmaps": {
    const { namespace } = args || {};
    const nsArg = namespace ? `-n ${namespace}` : "";
    const cmd = `kubectl get configmaps ${nsArg} -o wide`;
    const { stdout } = await execAsync(cmd);
    return {
      content: [{ type: "text", text: stdout || "No configmaps found" }]
    };
  }

• server.js:77-88 (schema)

  The input schema definition for the 'list-configmaps' tool, defining the optional 'namespace' parameter.

    name: "list-configmaps",
    description: "List Kubernetes configmaps in a namespace",
    inputSchema: {
      type: "object",
      properties: {
        namespace: { 
          type: "string",
          description: "The namespace to list configmaps from (optional, defaults to current context namespace)"
        }
      }
    }
  },

• server.js:1392-1394 (registration)

  The handler for ListToolsRequestSchema that returns the static 'tools' array containing the registration of 'list-configmaps' among other tools.

  server.setRequestHandler(ListToolsRequestSchema, async () => {
    return { tools };
  });