Show lens-metrics on cluster settings (#2714)

* show lens-metrics on cluster settings Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com> * remove ClusterFeature Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com> * remove ClusterFeature Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com> * tweak resource applier/stack Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com> * update metrics stack components Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com> * fix Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com> * fix drawer menu styles Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com> * cleanup Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com> * cleanup Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com> * clarify ui Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com> * built-in -> bundled Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com> * splitterError -> splitError Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com> * support multi-doc yamls Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com> * dedicated action button Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com> * fix headers Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com> * cleanup Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com> * async file operations Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com> * cleanup Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com> * fix bugs Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com>
2025-05-20 05:10:56 +00:00 · 2021-05-18 16:12:45 +03:00
1 parent d9c6e5c52f
commit 683e5926e0
@@ -19,12 +19,15 @@
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

-import { ClusterFeature, Catalog, K8sApi } from "@k8slens/extensions";
+import { Catalog, K8sApi } from "@k8slens/extensions";
 import semver from "semver";
 import * as path from "path";

 export interface MetricsConfiguration {
  // Placeholder for Metrics config structure
+  prometheus: {
+    enabled: boolean;
+  };
  persistence: {
    enabled: boolean;
    storageClass: string;
@@ -43,78 +46,72 @@ export interface MetricsConfiguration {
  alertManagers: string[];
  replicas: number;
  storageClass: string;
+  version?: string;
 }

-export class MetricsFeature extends ClusterFeature.Feature {
-  name = "metrics";
-  latestVersion = "v2.19.3-lens1";
+export interface MetricsStatus {
+  installed: boolean;
+  canUpgrade: boolean;
+}

-  templateContext: MetricsConfiguration = {
-    persistence: {
-      enabled: false,
-      storageClass: null,
-      size: "20G",
-    },
-    nodeExporter: {
-      enabled: true,
-    },
-    retention: {
-      time: "2d",
-      size: "5GB",
-    },
-    kubeStateMetrics: {
-      enabled: true,
-    },
-    alertManagers: null,
-    replicas: 1,
-    storageClass: null,
-  };
+export class MetricsFeature {
+  name = "lens-metrics";
+  latestVersion = "v2.26.0-lens1";

-  async install(cluster: Catalog.KubernetesCluster): Promise<void> {
+  protected stack: K8sApi.ResourceStack;
+
+  constructor(protected cluster: Catalog.KubernetesCluster) {
+    this.stack = new K8sApi.ResourceStack(cluster, this.name);
+  }
+
+  get resourceFolder() {
+    return path.join(__dirname, "../resources/");
+  }
+
+  async install(config: MetricsConfiguration): Promise<string> {
    // Check if there are storageclasses
-    const storageClassApi = K8sApi.forCluster(cluster, K8sApi.StorageClass);
+    const storageClassApi = K8sApi.forCluster(this.cluster, K8sApi.StorageClass);
    const scs = await storageClassApi.list();

-    this.templateContext.persistence.enabled = scs.some(sc => (
+    config.persistence.enabled = scs.some(sc => (
      sc.metadata?.annotations?.["storageclass.kubernetes.io/is-default-class"] === "true" ||
      sc.metadata?.annotations?.["storageclass.beta.kubernetes.io/is-default-class"] === "true"
    ));

-    super.applyResources(cluster, path.join(__dirname, "../resources/"));
+    config.version = this.latestVersion;
+
+    return this.stack.kubectlApplyFolder(this.resourceFolder, config, ["--prune"]);
  }

-  async upgrade(cluster: Catalog.KubernetesCluster): Promise<void> {
-    return this.install(cluster);
+  async upgrade(config: MetricsConfiguration): Promise<string> {
+    return this.install(config);
  }

-  async updateStatus(cluster: Catalog.KubernetesCluster): Promise<ClusterFeature.FeatureStatus> {
+  async getStatus(): Promise<MetricsStatus> {
+    const status: MetricsStatus = { installed: false, canUpgrade: false};
+
    try {
-      const statefulSet = K8sApi.forCluster(cluster, K8sApi.StatefulSet);
-      const prometheus = await statefulSet.get({name: "prometheus", namespace: "lens-metrics"});
+      const namespaceApi = K8sApi.forCluster(this.cluster, K8sApi.Namespace);
+      const namespace = await namespaceApi.get({name: "lens-metrics"});

-      if (prometheus?.kind) {
-        this.status.installed = true;
-        this.status.currentVersion = prometheus.spec.template.spec.containers[0].image.split(":")[1];
-        this.status.canUpgrade = semver.lt(this.status.currentVersion, this.latestVersion, true);
+      if (namespace?.kind) {
+        const currentVersion = namespace.metadata.annotations?.extensionVersion || "0.0.0";
+
+        status.installed = true;
+        status.canUpgrade = semver.lt(currentVersion, this.latestVersion, true);
      } else {
-        this.status.installed = false;
+        status.installed = false;
      }
    } catch(e) {
      if (e?.error?.code === 404) {
-        this.status.installed = false;
+        status.installed = false;
      }
    }

-    return this.status;
+    return status;
  }

-  async uninstall(cluster: Catalog.KubernetesCluster): Promise<void> {
-    const namespaceApi = K8sApi.forCluster(cluster, K8sApi.Namespace);
-    const clusterRoleBindingApi = K8sApi.forCluster(cluster, K8sApi.ClusterRoleBinding);
-    const clusterRoleApi = K8sApi.forCluster(cluster, K8sApi.ClusterRole);
-
-    await namespaceApi.delete({name: "lens-metrics"});
-    await clusterRoleBindingApi.delete({name: "lens-prometheus"});
-    await clusterRoleApi.delete({name: "lens-prometheus"});
+  async uninstall(config: MetricsConfiguration): Promise<string> {
+    return this.stack.kubectlDeleteFolder(this.resourceFolder, config);
  }
 }
@@ -0,0 +1,279 @@
+/**
+ * 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 React from "react";
+import { Component, Catalog, K8sApi } from "@k8slens/extensions";
+import { observer } from "mobx-react";
+import { computed, observable } from "mobx";
+import { MetricsFeature, MetricsConfiguration } from "./metrics-feature";
+
+interface Props {
+  cluster: Catalog.KubernetesCluster;
+}
+
+@observer
+export class MetricsSettings extends React.Component<Props> {
+  @observable featureStates = {
+    prometheus: false,
+    kubeStateMetrics: false,
+    nodeExporter: false
+  };
+  @observable canUpgrade = false;
+  @observable upgrading = false;
+  @observable changed = false;
+  @observable inProgress = false;
+
+  config: MetricsConfiguration = {
+    prometheus: {
+      enabled: false
+    },
+    persistence: {
+      enabled: false,
+      storageClass: null,
+      size: "20G",
+    },
+    nodeExporter: {
+      enabled: false,
+    },
+    retention: {
+      time: "2d",
+      size: "5GB",
+    },
+    kubeStateMetrics: {
+      enabled: false,
+    },
+    alertManagers: null,
+    replicas: 1,
+    storageClass: null,
+  };
+  feature: MetricsFeature;
+
+  @computed get isTogglable() {
+    if (this.inProgress) return false;
+    if (!this.props.cluster.status.active) return false;
+    if (this.canUpgrade) return false;
+    if (!this.isActiveMetricsProvider) return false;
+
+    return true;
+  }
+
+  get metricsProvider() {
+    return this.props.cluster.spec?.metrics?.prometheus?.type || "";
+  }
+
+  get isActiveMetricsProvider() {
+    return (!this.metricsProvider || this.metricsProvider === "lens");
+  }
+
+  async componentDidMount() {
+    this.feature = new MetricsFeature(this.props.cluster);
+
+    await this.updateFeatureStates();
+  }
+
+  async updateFeatureStates() {
+    const status = await this.feature.getStatus();
+
+    this.canUpgrade = status.canUpgrade;
+
+    if (this.canUpgrade) {
+      this.changed = true;
+    }
+
+    const statefulSet = K8sApi.forCluster(this.props.cluster, K8sApi.StatefulSet);
+
+    try {
+      await statefulSet.get({name: "prometheus", namespace: "lens-metrics"});
+      this.featureStates.prometheus = true;
+    } catch(e) {
+      if (e?.error?.code === 404) {
+        this.featureStates.prometheus = false;
+      } else {
+        this.featureStates.prometheus = undefined;
+      }
+    }
+
+    const deployment = K8sApi.forCluster(this.props.cluster, K8sApi.Deployment);
+
+    try {
+      await deployment.get({name: "kube-state-metrics", namespace: "lens-metrics"});
+      this.featureStates.kubeStateMetrics = true;
+    } catch(e) {
+      if (e?.error?.code === 404) {
+        this.featureStates.kubeStateMetrics = false;
+      } else {
+        this.featureStates.kubeStateMetrics = undefined;
+      }
+    }
+
+    const daemonSet = K8sApi.forCluster(this.props.cluster, K8sApi.DaemonSet);
+
+    try {
+      await daemonSet.get({name: "node-exporter", namespace: "lens-metrics"});
+      this.featureStates.nodeExporter = true;
+    } catch(e) {
+      if (e?.error?.code === 404) {
+        this.featureStates.nodeExporter = false;
+      } else {
+        this.featureStates.nodeExporter = undefined;
+      }
+    }
+  }
+
+  async save() {
+    this.config.prometheus.enabled = !!this.featureStates.prometheus;
+    this.config.kubeStateMetrics.enabled = !!this.featureStates.kubeStateMetrics;
+    this.config.nodeExporter.enabled = !!this.featureStates.nodeExporter;
+
+    this.inProgress = true;
+
+    try {
+      if (!this.config.prometheus.enabled && !this.config.kubeStateMetrics.enabled && !this.config.nodeExporter.enabled) {
+        await this.feature.uninstall(this.config);
+      } else {
+        await this.feature.install(this.config);
+      }
+    } finally {
+      this.inProgress = false;
+      this.changed = false;
+
+      await this.updateFeatureStates();
+    }
+  }
+
+  async togglePrometheus(enabled: boolean) {
+    this.featureStates.prometheus = enabled;
+    this.changed = true;
+  }
+
+  async toggleKubeStateMetrics(enabled: boolean) {
+    this.featureStates.kubeStateMetrics = enabled;
+    this.changed = true;
+  }
+
+  async toggleNodeExporter(enabled: boolean) {
+    this.featureStates.nodeExporter = enabled;
+    this.changed = true;
+  }
+
+  @computed get buttonLabel() {
+    const allDisabled = !this.featureStates.kubeStateMetrics && !this.featureStates.nodeExporter && !this.featureStates.prometheus;
+
+    if (this.inProgress && this.canUpgrade) return "Upgrading ...";
+    if (this.inProgress && allDisabled) return "Uninstalling ...";
+    if (this.inProgress) return "Applying ...";
+    if (this.canUpgrade) return "Upgrade";
+
+    if (this.changed && allDisabled) {
+      return "Uninstall";
+    }
+
+    return "Apply";
+  }
+
+  render() {
+    return (
+      <>
+        { !this.props.cluster.status.active && (
+          <section>
+            <p style={ {color: "var(--colorError)"} }>
+              Lens Metrics settings requires established connection to the cluster.
+            </p>
+          </section>
+        )}
+        { !this.isActiveMetricsProvider && (
+          <section>
+            <p style={ {color: "var(--colorError)"} }>
+              Other metrics provider is currently active. See &quot;Metrics&quot; tab for details.
+            </p>
+          </section>
+        )}
+        <section>
+          <Component.SubTitle title="Prometheus" />
+          <Component.FormSwitch
+            control={
+              <Component.Switcher
+                disabled={this.featureStates.kubeStateMetrics === undefined || !this.isTogglable}
+                checked={!!this.featureStates.prometheus && this.props.cluster.status.active}
+                onChange={v => this.togglePrometheus(v.target.checked)}
+                name="prometheus"
+              />
+            }
+            label="Enable bundled Prometheus metrics stack"
+          />
+          <small className="hint">
+            Enable timeseries data visualization (Prometheus stack) for your cluster.
+          </small>
+        </section>
+
+        <section>
+          <Component.SubTitle title="Kube State Metrics" />
+          <Component.FormSwitch
+            control={
+              <Component.Switcher
+                disabled={this.featureStates.kubeStateMetrics === undefined || !this.isTogglable}
+                checked={!!this.featureStates.kubeStateMetrics && this.props.cluster.status.active}
+                onChange={v => this.toggleKubeStateMetrics(v.target.checked)}
+                name="node-exporter"
+              />
+            }
+            label="Enable bundled kube-state-metrics stack"
+          />
+          <small className="hint">
+            Enable Kubernetes API object metrics for your cluster.
+            Enable this only if you don&apos;t have existing kube-state-metrics stack installed.
+          </small>
+        </section>
+
+        <section>
+          <Component.SubTitle title="Node Exporter" />
+          <Component.FormSwitch
+            control={
+              <Component.Switcher
+                disabled={this.featureStates.nodeExporter === undefined || !this.isTogglable}
+                checked={!!this.featureStates.nodeExporter && this.props.cluster.status.active}
+                onChange={v => this.toggleNodeExporter(v.target.checked)}
+                name="node-exporter"
+              />
+            }
+            label="Enable bundled node-exporter stack"
+          />
+          <small className="hint">
+            Enable node level metrics for your cluster.
+            Enable this only if you don&apos;t have existing node-exporter stack installed.
+          </small>
+        </section>
+
+        <section>
+          <Component.Button
+            label={this.buttonLabel}
+            waiting={this.inProgress}
+            onClick={() => this.save()}
+            primary
+            disabled={!this.changed} />
+
+          {this.canUpgrade && (<small className="hint">
+            An update is available for enabled metrics components.
+          </small>)}
+        </section>
+      </>
+    );
+  }
+}