Improved handling of empty or disabled kubernetes configuration

src/pages/api/kubernetes/stats/[...service].js

@@ -21,6 +21,12 @@ export default async function handler(req, res) {
 
   try {
     const kc = getKubeConfig();
+    if (!kc) {
+      res.status(500).send({
+        error: "No kubernetes configuration"
+      });
+      return;
+    }
     const coreApi = kc.makeApiClient(CoreV1Api);
     const metricsApi = new Metrics(kc);
     const podsResponse = await coreApi.listNamespacedPod(namespace, null, null, null, null, labelSelector)

src/pages/api/kubernetes/status/[...service].js

@@ -20,6 +20,12 @@ export default async function handler(req, res) {
 
   try {
     const kc = getKubeConfig();
+    if (!kc) {
+      res.status(500).send({
+        error: "No kubernetes configuration"
+      });
+      return;
+    }
     const coreApi = kc.makeApiClient(CoreV1Api);
     const podsResponse = await coreApi.listNamespacedPod(namespace, null, null, null, null, labelSelector)
       .then((response) => response.body)

src/pages/api/widgets/kubernetes.js

@@ -11,6 +11,11 @@ export default async function handler(req, res) {
 
   try {
     const kc = getKubeConfig();
+    if (!kc) {
+      return res.status(500).send({
+        error: "No kubernetes configuration"
+      });
+    }
     const coreApi = kc.makeApiClient(CoreV1Api);
     const metricsApi = new Metrics(kc);
 

src/utils/config/kubernetes.js

@@ -19,8 +19,11 @@ export default function getKubeConfig() {
       kc.loadFromCluster();
       break;
     case 'default':
-    default:
       kc.loadFromDefault();
+      break;
+    case 'disabled':
+    default:
+      return null;
   }
 
   return kc;

src/utils/config/service-helpers.js

@@ -125,6 +125,9 @@ export async function servicesFromKubernetes() {
 
   try {
     const kc = getKubeConfig();
+    if (!kc) {
+      return [];
+    }
     const networking = kc.makeApiClient(NetworkingV1Api);
 
     const ingressList = await networking.listIngressForAllNamespaces(null, null, null, "homepage/enabled=true")