feat: New view for PriorityClasses under Config menu (#5816)

* feat: new view for PriorityClass under Config menu

Signed-off-by: Piotr Roszatycki <piotr.roszatycki@gmail.com>

* Added priorityClassDetailItemInjectable

Signed-off-by: Piotr Roszatycki <piotr.roszatycki@gmail.com>

* Removed uneccessary defensive code

Signed-off-by: Piotr Roszatycki <piotr.roszatycki@gmail.com>

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

@@ -29,6 +29,7 @@ export * from "./pod.api";
 export * from "./pod-disruption-budget.api";
 export * from "./pod-metrics.api";
 export * from "./pod-security-policy.api";
+export * from "./priority-class.api";
 export * from "./replica-set.api";
 export * from "./resource-quota.api";
 export * from "./role.api";

src/common/k8s-api/endpoints/priority-class.api.injectable.ts

@@ -0,0 +1,19 @@
+/**
+ * Copyright (c) OpenLens Authors. All rights reserved.
+ * Licensed under MIT License. See LICENSE in root directory for more information.
+ */
+import { getInjectable } from "@ogre-tools/injectable";
+import assert from "assert";
+import { storesAndApisCanBeCreatedInjectionToken } from "../stores-apis-can-be-created.token";
+import { PriorityClassApi } from "./priority-class.api";
+
+const priorityClassApiInjectable = getInjectable({
+  id: "priority-class-api",
+  instantiate: (di) => {
+    assert(di.inject(storesAndApisCanBeCreatedInjectionToken), "PriorityClassApi is only available in certain environments");
+
+    return new PriorityClassApi();
+  },
+});
+
+export default priorityClassApiInjectable;

src/common/k8s-api/endpoints/priority-class.api.ts

@@ -0,0 +1,66 @@
+/**
+ * Copyright (c) OpenLens Authors. All rights reserved.
+ * Licensed under MIT License. See LICENSE in root directory for more information.
+ */
+
+import type { DerivedKubeApiOptions } from "../kube-api";
+import { KubeApi } from "../kube-api";
+import type { KubeJsonApiData } from "../kube-json-api";
+import type { ClusterScopedMetadata, KubeObjectMetadata, KubeObjectScope } from "../kube-object";
+import { KubeObject } from "../kube-object";
+import type { PreemptionPolicy } from "./types/preemption-policy";
+
+export interface PriorityClassData extends KubeJsonApiData<KubeObjectMetadata<KubeObjectScope.Cluster>, void, void> {
+  description?: string;
+  globalDefault?: boolean;
+  preemptionPolicy?: PreemptionPolicy;
+  value: number;
+}
+
+export class PriorityClass extends KubeObject<
+  ClusterScopedMetadata,
+  void,
+  void
+> {
+  static readonly kind = "PriorityClass";
+  static readonly namespaced = false;
+  static readonly apiBase = "/apis/scheduling.k8s.io/v1/priorityclasses";
+
+  description?: string;
+  globalDefault?: boolean;
+  preemptionPolicy?: PreemptionPolicy;
+  value?: number;
+
+  constructor({ description, globalDefault, preemptionPolicy, value, ...rest }: PriorityClassData) {
+    super(rest);
+    this.description = description;
+    this.globalDefault = globalDefault;
+    this.preemptionPolicy = preemptionPolicy;
+    this.value = value;
+  }
+
+  getDescription() {
+    return this.description || "";
+  }
+
+  getGlobalDefault() {
+    return (this.globalDefault || false).toString();
+  }
+
+  getPreemptionPolicy() {
+    return this.preemptionPolicy || "PreemptLowerPriority";
+  }
+
+  getValue() {
+    return this.value;
+  }
+}
+
+export class PriorityClassApi extends KubeApi<PriorityClass, PriorityClassData> {
+  constructor(opts: DerivedKubeApiOptions = {}) {
+    super({
+      objectConstructor: PriorityClass,
+      ...opts,
+    });
+  }
+}

src/common/k8s-api/endpoints/types/preemption-policy.ts

@@ -0,0 +1,6 @@
+/**
+ * Copyright (c) OpenLens Authors. All rights reserved.
+ * Licensed under MIT License. See LICENSE in root directory for more information.
+ */
+
+export type PreemptionPolicy = "Never" | "PreemptLowerPriority";