InfraClaude

Instructions

Implementation Reference

• src/tools/kubernetes/resources.ts:48-72 (handler)

  The implementation of the `k8s_top_nodes` handler function, which fetches node resource metrics using the metrics API.

  export async function topNodes(): Promise<string> {
    const api = getMetricsApi();
  
    const response = await api.listClusterCustomObject(
      "metrics.k8s.io",
      "v1beta1",
      "nodes"
    );
  
    const body = response.body as { items: MetricsItem[] };
    const items = body.items || [];
  
    if (items.length === 0) {
      return "No metrics available for nodes. Is metrics-server installed?";
    }
  
    const headers = ["NODE", "CPU", "MEMORY"];
    const rows = items.map((item) => [
      item.metadata.name,
      item.usage?.cpu || "N/A",
      item.usage?.memory || "N/A",
    ]);
  
    return `Node resource usage:\n\n${formatTable(headers, rows)}`;
  }

• src/tools/kubernetes/index.ts:86-90 (registration)

  Tool registration for `k8s_top_nodes` in the Kubernetes toolset.

  {
    name: "k8s_top_nodes",
    description: "Show CPU and memory usage for all cluster nodes (requires metrics-server)",
    inputSchema: { type: "object" as const, properties: {} },
  },

• src/tools/kubernetes/index.ts:202-202 (handler)

  Tool handler delegation for `k8s_top_nodes`.

  case "k8s_top_nodes": return topNodes();