Add auto-detect support for Victoria Metrics Single (#4693)

src/main/initializers/metrics-providers.ts

@@ -24,11 +24,13 @@ import { PrometheusHelm } from "../prometheus/helm";
 import { PrometheusLens } from "../prometheus/lens";
 import { PrometheusOperator } from "../prometheus/operator";
 import { PrometheusStacklight } from "../prometheus/stacklight";
+import { PrometheusVictoriaMetricsSingle } from "../prometheus/victoria-metrics-single";
 
 export function initPrometheusProviderRegistry() {
   PrometheusProviderRegistry
     .getInstance()
     .registerProvider(new PrometheusLens())
+    .registerProvider(new PrometheusVictoriaMetricsSingle())
     .registerProvider(new PrometheusHelm())
     .registerProvider(new PrometheusOperator())
     .registerProvider(new PrometheusStacklight());

src/main/prometheus/victoria-metrics-single.ts

+/**
+ * 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 { PrometheusLens } from "./lens";
+import type { CoreV1Api } from "@kubernetes/client-node";
+import type { PrometheusService } from "./provider-registry";
+
+export class PrometheusVictoriaMetricsSingle extends PrometheusLens {
+  readonly id: string = "victoria-metrics-single";
+  readonly name: string = "Victoria Metrics (single)";
+  readonly rateAccuracy: string = "5m";
+  readonly isConfigurable: boolean = true;
+
+  public async getPrometheusService(client: CoreV1Api): Promise<PrometheusService> {
+    return this.getFirstNamespacedService(client, "app=server,app.kubernetes.io/name=victoria-metrics-single");
+  }
+}