fix: give openshift namespace watch the correct permission

Author: minsiyang

snyk-monitor/templates/role.yaml

@@ -22,6 +22,8 @@ rules:
   resources:
   - namespaces
   verbs:
+  - get
+  - list
   - watch
 - apiGroups:
   - ""

src/supervisor/types.ts

@@ -6,6 +6,7 @@ import {
   CoreV1Api,
   CustomObjectsApi,
   KubeConfig,
+  V1Namespace,
   V1ObjectMeta,
   V1OwnerReference,
   V1PodSpec,
@@ -64,3 +65,8 @@ export class K8sClients implements IK8sClients {
     this.customObjectsClient = config.makeApiClient(CustomObjectsApi);
   }
 }
+
+export interface NamespaceResponse {
+  response: IncomingMessage;
+  body: V1Namespace;
+}

src/supervisor/watchers/index.ts

@@ -2,7 +2,7 @@ import { V1Namespace } from '@kubernetes/client-node';
 
 import { logger } from '../../common/logger';
 import { config } from '../../common/config';
-import { WorkloadKind } from '../types';
+import { NamespaceResponse, WorkloadKind } from '../types';
 import { setupNamespacedInformer, setupClusterInformer } from './handlers';
 import { k8sApi } from '../cluster';
 import { extractNamespaceName } from './internal-namespaces';
@@ -60,9 +60,18 @@ export async function beginWatchingWorkloads(): Promise<void> {
       { namespace: config.WATCH_NAMESPACE },
       'kubernetes-monitor restricted to specific namespace',
     );
-    const namespaceResponse = await k8sApi.coreClient.readNamespace(
-      config.WATCH_NAMESPACE,
-    );
+    let namespaceResponse: NamespaceResponse | undefined;
+    try {
+      namespaceResponse = await k8sApi.coreClient.readNamespace(
+        config.WATCH_NAMESPACE,
+      );
+    } catch (err) {
+      logger.error(
+        { watchedNamespace: config.WATCH_NAMESPACE, err },
+        'failed to read the namespace',
+      );
+      return;
+    }
     const namespace = namespaceResponse.body;
     await setupWatchesForNamespace(namespace);
     return;