Kubernetes MCP Server

Instructions

Implementation Reference

• server.js:1742-1750 (handler)

  Handler implementation for the 'get-configmap' tool. Executes kubectl get configmap with -o yaml to retrieve the full configmap data including all keys and values.

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

• server.js:566-582 (schema)

  Input schema definition for the 'get-configmap' tool, defining required 'configmap' name and optional 'namespace' parameter.

    name: "get-configmap",
    description: "Get the data from a configmap",
    inputSchema: {
      type: "object",
      properties: {
        configmap: { 
          type: "string",
          description: "The name of the configmap"
        },
        namespace: { 
          type: "string",
          description: "The namespace of the configmap (optional, defaults to current context namespace)"
        }
      },
      required: ["configmap"]
    }
  },

• server.js:1392-1394 (registration)

  Registration handler for listing all available tools, including 'get-configmap' via the 'tools' array.

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