Refactor k8s api to common (#3553)

* refactor kube api to common

Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com>

* refactor more utils to common

Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com>

* refactor more utils to common

Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com>

* fix tests

Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com>

* switch to use node-fetch on both sides

Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com>

* cleanup

Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com>

* improve logger

Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com>

* fix lint errors

Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com>

* fix/improve tests

Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com>

* fix tests

Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com>

* fix node-fetch require error on prod build

Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com>

* preload fix

Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com>

* fixes

Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com>

* read serverAddress from apiBase

Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com>

* cleanup

Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com>

src/common/k8s-api/endpoints/cluster.api.ts

@@ -0,0 +1,139 @@
+/**
+ * Copyright (c) 2021 OpenLens Authors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+import { IMetrics, IMetricsReqParams, metricsApi } from "./metrics.api";
+import { KubeObject } from "../kube-object";
+import { KubeApi } from "../kube-api";
+import { isClusterPageContext } from "../../utils/cluster-id-url-parsing";
+
+export class ClusterApi extends KubeApi<Cluster> {
+  static kind = "Cluster";
+  static namespaced = true;
+}
+
+export function getMetricsByNodeNames(nodeNames: string[], params?: IMetricsReqParams): Promise<IClusterMetrics> {
+  const nodes = nodeNames.join("|");
+  const opts = { category: "cluster", nodes };
+
+  return metricsApi.getMetrics({
+    memoryUsage: opts,
+    workloadMemoryUsage: opts,
+    memoryRequests: opts,
+    memoryLimits: opts,
+    memoryCapacity: opts,
+    memoryAllocatableCapacity: opts,
+    cpuUsage: opts,
+    cpuRequests: opts,
+    cpuLimits: opts,
+    cpuCapacity: opts,
+    cpuAllocatableCapacity: opts,
+    podUsage: opts,
+    podCapacity: opts,
+    podAllocatableCapacity: opts,
+    fsSize: opts,
+    fsUsage: opts
+  }, params);
+}
+
+export enum ClusterStatus {
+  ACTIVE = "Active",
+  CREATING = "Creating",
+  REMOVING = "Removing",
+  ERROR = "Error"
+}
+
+export interface IClusterMetrics<T = IMetrics> {
+  [metric: string]: T;
+  memoryUsage: T;
+  memoryRequests: T;
+  memoryLimits: T;
+  memoryCapacity: T;
+  cpuUsage: T;
+  cpuRequests: T;
+  cpuLimits: T;
+  cpuCapacity: T;
+  podUsage: T;
+  podCapacity: T;
+  fsSize: T;
+  fsUsage: T;
+}
+
+export interface Cluster {
+  spec: {
+    clusterNetwork?: {
+      serviceDomain?: string;
+      pods?: {
+        cidrBlocks?: string[];
+      };
+      services?: {
+        cidrBlocks?: string[];
+      };
+    };
+    providerSpec: {
+      value: {
+        profile: string;
+      };
+    };
+  };
+  status?: {
+    apiEndpoints: {
+      host: string;
+      port: string;
+    }[];
+    providerStatus: {
+      adminUser?: string;
+      adminPassword?: string;
+      kubeconfig?: string;
+      processState?: string;
+      lensAddress?: string;
+    };
+    errorMessage?: string;
+    errorReason?: string;
+  };
+}
+
+export class Cluster extends KubeObject {
+  static kind = "Cluster";
+  static apiBase = "/apis/cluster.k8s.io/v1alpha1/clusters";
+
+  getStatus() {
+    if (this.metadata.deletionTimestamp) return ClusterStatus.REMOVING;
+    if (!this.status || !this.status) return ClusterStatus.CREATING;
+    if (this.status.errorMessage) return ClusterStatus.ERROR;
+
+    return ClusterStatus.ACTIVE;
+  }
+}
+
+/**
+ * Only available within kubernetes cluster pages
+ */
+let clusterApi: ClusterApi;
+
+if (isClusterPageContext()) { // initialize automatically only when within a cluster iframe/context
+  clusterApi = new ClusterApi({
+    objectConstructor: Cluster,
+  });
+}
+
+export {
+  clusterApi
+};