InfraClaude

Instructions

Implementation Reference

• src/tools/kubernetes/nodes.ts:4-37 (handler)

  The getNodes function fetches the list of nodes from the Kubernetes API and formats them into a table string.

  export async function getNodes(): Promise<string> {
    const api = getCoreV1Api();
    const response = await api.listNode();
    const nodes = response.body.items;
  
    if (nodes.length === 0) {
      return "No nodes found in the cluster.";
    }
  
    const headers = ["NAME", "STATUS", "ROLES", "AGE", "VERSION"];
    const rows = nodes.map((node) => {
      const conditions = node.status?.conditions || [];
      const readyCond = conditions.find((c) => c.type === "Ready");
      const status = readyCond?.status === "True" ? "Ready" : "NotReady";
  
      const roles = Object.keys(node.metadata?.labels || {})
        .filter((l) => l.startsWith("node-role.kubernetes.io/"))
        .map((l) => l.replace("node-role.kubernetes.io/", ""))
        .join(",") || "<none>";
  
      // Check for taints that indicate scheduling issues
      const unschedulable = node.spec?.unschedulable ? ",SchedulingDisabled" : "";
  
      return [
        node.metadata?.name || "unknown",
        status + unschedulable,
        roles,
        node.metadata?.creationTimestamp ? formatAge(node.metadata.creationTimestamp) : "?",
        node.status?.nodeInfo?.kubeletVersion || "?",
      ];
    });
  
    return `Cluster nodes:\n\n${formatTable(headers, rows)}`;
  }

• src/tools/kubernetes/index.ts:150-153 (registration)

  The tool definition for 'k8s_get_nodes' in the registration list.

    name: "k8s_get_nodes",
    description: "List all cluster nodes with status, roles, and version",
    inputSchema: { type: "object" as const, properties: {} },
  },

• src/tools/kubernetes/index.ts:208-208 (handler)

  The switch-case entry that calls the 'getNodes' handler function.

  case "k8s_get_nodes": return getNodes();