add app monitoring charts and runtime metrics

src/runtime/runtime.service.ts

@@ -62,14 +62,59 @@ export class RuntimeService {
   }
 
   async listPodMetrics(namespace?: string) {
-    const output = await this.kubectl([
+    try {
-      'top',
+      const output = await this.kubectl([
-      'pods',
+        'top',
-      ...(namespace ? ['-n', namespace] : ['--all-namespaces']),
+        'pods',
-      '--no-headers',
+        ...(namespace ? ['-n', namespace] : ['--all-namespaces']),
-    ]);
+        '--no-headers',
+      ]);
 
-    return parsePodMetrics(output, Boolean(namespace), namespace);
+      return parsePodMetrics(output, Boolean(namespace), namespace);
+    } catch {
+      return this.listRunningPodMetrics(namespace);
+    }
+  }
+
+  private async listRunningPodMetrics(namespace?: string) {
+    const pods = await this.kubectlJson([
+      'get',
+      'pods',
+      '-o',
+      'json',
+      ...(namespace ? ['-n', namespace] : ['--all-namespaces']),
+    ]);
+    const runningPods = (pods.items ?? [])
+      .filter((pod: KubectlJson) => pod.status?.phase === 'Running')
+      .map((pod: KubectlJson) => ({
+        namespace: pod.metadata?.namespace,
+        name: pod.metadata?.name,
+      }))
+      .filter((pod: { namespace?: string; name?: string }) => pod.namespace && pod.name);
+
+    if (!runningPods.length) {
+      return [];
+    }
+
+    const byNamespace = new Map<string, string[]>();
+    runningPods.forEach((pod: { namespace: string; name: string }) => {
+      byNamespace.set(pod.namespace, [...(byNamespace.get(pod.namespace) ?? []), pod.name]);
+    });
+
+    const outputs = await Promise.all([...byNamespace.entries()].map(([podNamespace, podNames]) => (
+      this.kubectl([
+        'top',
+        'pods',
+        ...podNames,
+        '-n',
+        podNamespace,
+        '--no-headers',
+      ])
+        .then((output) => parsePodMetrics(output, true, podNamespace))
+        .catch(() => [])
+    )));
+
+    return outputs.flat();
   }
 
   async getClusterMetrics() {