Introducing self-expanatory metric request functions

Signed-off-by: Alex Andreev <alex.andreev.email@gmail.com>

src/renderer/api/endpoints/cluster.api.ts

@@ -52,6 +52,26 @@ export class ClusterApi extends KubeApi<Cluster> {
   }
 }
 
+export function getMetricsByNodeNames(nodeNames: string[], params?: IMetricsReqParams): Promise<IClusterMetrics> {
+  const nodes = nodeNames.join("|");
+  const opts = { category: "cluster", nodes };
+
+  return metricsApi.getMetrics({
+    memoryUsage: opts,
+    memoryRequests: opts,
+    memoryLimits: opts,
+    memoryCapacity: opts,
+    cpuUsage: opts,
+    cpuRequests: opts,
+    cpuLimits: opts,
+    cpuCapacity: opts,
+    podUsage: opts,
+    podCapacity: opts,
+    fsSize: opts,
+    fsUsage: opts
+  }, params);
+}
+
 export enum ClusterStatus {
   ACTIVE = "Active",
   CREATING = "Creating",

src/renderer/api/endpoints/daemon-set.api.ts

@@ -20,11 +20,12 @@
  */
 
 import get from "lodash/get";
-import type { IPodContainer } from "./pods.api";
 import { IAffinity, WorkloadKubeObject } from "../workload-kube-object";
 import { autoBind } from "../../utils";
 import { KubeApi } from "../kube-api";
+import { metricsApi } from "./metrics.api";
 import type { KubeJsonApiData } from "../kube-json-api";
+import type { IPodContainer, IPodMetrics } from "./pods.api";
 
 export class DaemonSet extends WorkloadKubeObject {
   static kind = "DaemonSet";
@@ -97,6 +98,24 @@ export class DaemonSet extends WorkloadKubeObject {
   }
 }
 
-export const daemonSetApi = new KubeApi({
+export class DaemonSetApi extends KubeApi<DaemonSet> {
+}
+
+export function getMetricsForDaemonSets(daemonsets: DaemonSet[], namespace: string, selector = ""): Promise<IPodMetrics> {
+  const podSelector = daemonsets.map(daemonset => `${daemonset.getName()}-[[:alnum:]]{5}`).join("|");
+  const opts = { category: "pods", pods: podSelector, namespace, selector };
+
+  return metricsApi.getMetrics({
+    cpuUsage: opts,
+    memoryUsage: opts,
+    fsUsage: opts,
+    networkReceive: opts,
+    networkTransmit: opts,
+  }, {
+    namespace,
+  });
+}
+
+export const daemonSetApi = new DaemonSetApi({
   objectConstructor: DaemonSet,
 });

src/renderer/api/endpoints/deployment.api.ts

@@ -24,6 +24,8 @@ import moment from "moment";
 import { IAffinity, WorkloadKubeObject } from "../workload-kube-object";
 import { autoBind } from "../../utils";
 import { KubeApi } from "../kube-api";
+import { metricsApi } from "./metrics.api";
+import type { IPodMetrics } from "./pods.api";
 import type { KubeJsonApiData } from "../kube-json-api";
 
 export class DeploymentApi extends KubeApi<Deployment> {
@@ -68,6 +70,21 @@ export class DeploymentApi extends KubeApi<Deployment> {
   }
 }
 
+export function getMetricsForDeployments(deployments: Deployment[], namespace: string, selector = ""): Promise<IPodMetrics> {
+  const podSelector = deployments.map(deployment => `${deployment.getName()}-[[:alnum:]]{9,}-[[:alnum:]]{5}`).join("|");
+  const opts = { category: "pods", pods: podSelector, namespace, selector };
+
+  return metricsApi.getMetrics({
+    cpuUsage: opts,
+    memoryUsage: opts,
+    fsUsage: opts,
+    networkReceive: opts,
+    networkTransmit: opts,
+  }, {
+    namespace,
+  });
+}
+
 interface IContainerProbe {
   httpGet?: {
     path?: string;

src/renderer/api/endpoints/ingress.api.ts

@@ -26,18 +26,19 @@ import { KubeApi } from "../kube-api";
 import type { KubeJsonApiData } from "../kube-json-api";
 
 export class IngressApi extends KubeApi<Ingress> {
-  getMetrics(ingress: string, namespace: string): Promise<IIngressMetrics> {
-    const opts = { category: "ingress", ingress, namespace };
+}
 
-    return metricsApi.getMetrics({
-      bytesSentSuccess: opts,
-      bytesSentFailure: opts,
-      requestDurationSeconds: opts,
-      responseDurationSeconds: opts
-    }, {
-      namespace,
-    });
-  }
+export function getMetricsForIngress(ingress: string, namespace: string): Promise<IIngressMetrics> {
+  const opts = { category: "ingress", ingress };
+
+  return metricsApi.getMetrics({
+    bytesSentSuccess: opts,
+    bytesSentFailure: opts,
+    requestDurationSeconds: opts,
+    responseDurationSeconds: opts
+  }, {
+    namespace,
+  });
 }
 
 export interface IIngressMetrics<T = IMetrics> {

src/renderer/api/endpoints/job.api.ts

@@ -22,10 +22,11 @@
 import get from "lodash/get";
 import { autoBind } from "../../utils";
 import { IAffinity, WorkloadKubeObject } from "../workload-kube-object";
-import type { IPodContainer } from "./pods.api";
 import { KubeApi } from "../kube-api";
+import { metricsApi } from "./metrics.api";
 import type { JsonApiParams } from "../json-api";
 import type { KubeJsonApiData } from "../kube-json-api";
+import type { IPodContainer, IPodMetrics } from "./pods.api";
 
 export class Job extends WorkloadKubeObject {
   static kind = "Job";
@@ -129,6 +130,24 @@ export class Job extends WorkloadKubeObject {
   }
 }
 
-export const jobApi = new KubeApi({
+export class JobApi extends KubeApi<Job> {
+}
+
+export function getMetricsForJobs(jobs: Job[], namespace: string, selector = ""): Promise<IPodMetrics> {
+  const podSelector = jobs.map(job => `${job.getName()}-[[:alnum:]]{5}`).join("|");
+  const opts = { category: "pods", pods: podSelector, namespace, selector };
+
+  return metricsApi.getMetrics({
+    cpuUsage: opts,
+    memoryUsage: opts,
+    fsUsage: opts,
+    networkReceive: opts,
+    networkTransmit: opts,
+  }, {
+    namespace,
+  });
+}
+
+export const jobApi = new JobApi({
   objectConstructor: Job,
 });

src/renderer/api/endpoints/metrics.api.ts

@@ -60,6 +60,15 @@ export interface IMetricsReqParams {
   namespace?: string;             // rbac-proxy validation param
 }
 
+export interface IResourceMetrics<T = IMetrics> {
+  [metric: string]: T;
+  cpuUsage: T;
+  memoryUsage: T;
+  fsUsage: T;
+  networkReceive: T;
+  networkTransmit: T;
+}
+
 export const metricsApi = {
   async getMetrics<T = IMetricsQuery>(query: T, reqParams: IMetricsReqParams = {}): Promise<T extends object ? { [K in keyof T]: IMetrics } : IMetrics> {
     const { range = 3600, step = 60, namespace } = reqParams;

src/renderer/api/endpoints/namespaces.api.ts

@@ -22,6 +22,8 @@
 import { KubeApi } from "../kube-api";
 import { KubeObject } from "../kube-object";
 import { autoBind } from "../../utils";
+import { metricsApi } from "./metrics.api";
+import type { IPodMetrics } from "./pods.api";
 import type { KubeJsonApiData } from "../kube-json-api";
 
 export enum NamespaceStatus {
@@ -50,6 +52,23 @@ export class Namespace extends KubeObject {
   }
 }
 
-export const namespacesApi = new KubeApi({
+export class NamespaceApi extends KubeApi<Namespace> {
+}
+
+export function getMetricsForNamespace(namespace: string, selector = ""): Promise<IPodMetrics> {
+  const opts = { category: "pods", pods: ".*", namespace, selector };
+
+  return metricsApi.getMetrics({
+    cpuUsage: opts,
+    memoryUsage: opts,
+    fsUsage: opts,
+    networkReceive: opts,
+    networkTransmit: opts,
+  }, {
+    namespace,
+  });
+}
+
+export const namespacesApi = new NamespaceApi({
   objectConstructor: Namespace,
 });

src/renderer/api/endpoints/nodes.api.ts

@@ -26,20 +26,21 @@ import { KubeApi } from "../kube-api";
 import type { KubeJsonApiData } from "../kube-json-api";
 
 export class NodesApi extends KubeApi<Node> {
-  getMetrics(): Promise<INodeMetrics> {
-    const opts = { category: "nodes" };
+}
 
-    return metricsApi.getMetrics({
-      memoryUsage: opts,
-      workloadMemoryUsage: opts,
-      memoryCapacity: opts,
-      memoryAllocatableCapacity: opts,
-      cpuUsage: opts,
-      cpuCapacity: opts,
-      fsSize: opts,
-      fsUsage: opts
-    });
-  }
+export function getMetricsForAllNodes(): Promise<INodeMetrics> {
+  const opts = { category: "nodes"};
+
+  return metricsApi.getMetrics({
+    memoryUsage: opts,
+    workloadMemoryUsage: opts,
+    memoryCapacity: opts,
+    memoryAllocatableCapacity: opts,
+    cpuUsage: opts,
+    cpuCapacity: opts,
+    fsSize: opts,
+    fsUsage: opts
+  });
 }
 
 export interface INodeMetrics<T = IMetrics> {

src/renderer/api/endpoints/persistent-volume-claims.api.ts

@@ -27,14 +27,15 @@ import { KubeApi } from "../kube-api";
 import type { KubeJsonApiData } from "../kube-json-api";
 
 export class PersistentVolumeClaimsApi extends KubeApi<PersistentVolumeClaim> {
-  getMetrics(pvcName: string, namespace: string): Promise<IPvcMetrics> {
-    return metricsApi.getMetrics({
-      diskUsage: { category: "pvc", pvc: pvcName, namespace },
-      diskCapacity: { category: "pvc", pvc: pvcName, namespace }
-    }, {
-      namespace
-    });
-  }
+}
+
+export function getMetricsForPvc(pvc: PersistentVolumeClaim): Promise<IPvcMetrics> {
+  return metricsApi.getMetrics({
+    diskUsage: { category: "pvc", pvc: pvc.getName() },
+    diskCapacity: { category: "pvc", pvc: pvc.getName() }
+  }, {
+    namespace: pvc.getNs()
+  });
 }
 
 export interface IPvcMetrics<T = IMetrics> {

src/renderer/api/endpoints/pods.api.ts

@@ -31,38 +31,38 @@ export class PodsApi extends KubeApi<Pod> {
 
     return this.request.get(path, { query });
   }
+}
 
-  getMetrics(pods: Pod[], namespace: string, selector = "pod, namespace"): Promise<IPodMetrics> {
-    const podSelector = pods.map(pod => pod.getName()).join("|");
-    const opts = { category: "pods", pods: podSelector, namespace, selector };
+export function getMetricsForPods(pods: Pod[], namespace: string, selector = "pod, namespace"): Promise<IPodMetrics> {
+  const podSelector = pods.map(pod => pod.getName()).join("|");
+  const opts = { category: "pods", pods: podSelector, namespace, selector };
 
-    return metricsApi.getMetrics({
-      cpuUsage: opts,
-      cpuRequests: opts,
-      cpuLimits: opts,
-      memoryUsage: opts,
-      memoryRequests: opts,
-      memoryLimits: opts,
-      fsUsage: opts,
-      networkReceive: opts,
-      networkTransmit: opts,
-    }, {
-      namespace,
-    });
-  }
+  return metricsApi.getMetrics({
+    cpuUsage: opts,
+    cpuRequests: opts,
+    cpuLimits: opts,
+    memoryUsage: opts,
+    memoryRequests: opts,
+    memoryLimits: opts,
+    fsUsage: opts,
+    networkReceive: opts,
+    networkTransmit: opts,
+  }, {
+    namespace,
+  });
 }
 
 export interface IPodMetrics<T = IMetrics> {
   [metric: string]: T;
   cpuUsage: T;
-  cpuRequests: T;
-  cpuLimits: T;
   memoryUsage: T;
-  memoryRequests: T;
-  memoryLimits: T;
   fsUsage: T;
   networkReceive: T;
   networkTransmit: T;
+  cpuRequests?: T;
+  cpuLimits?: T;
+  memoryRequests?: T;
+  memoryLimits?: T;
 }
 
 // Reference: https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.19/#read-log-pod-v1-core

src/renderer/api/endpoints/replica-set.api.ts

@@ -22,8 +22,9 @@
 import get from "lodash/get";
 import { autoBind } from "../../utils";
 import { WorkloadKubeObject } from "../workload-kube-object";
-import type { IPodContainer, Pod } from "./pods.api";
 import { KubeApi } from "../kube-api";
+import { metricsApi } from "./metrics.api";
+import type { IPodContainer, IPodMetrics, Pod } from "./pods.api";
 import type { KubeJsonApiData } from "../kube-json-api";
 
 export class ReplicaSetApi extends KubeApi<ReplicaSet> {
@@ -49,6 +50,21 @@ export class ReplicaSetApi extends KubeApi<ReplicaSet> {
   }
 }
 
+export function getMetricsForReplicaSets(replicasets: ReplicaSet[], namespace: string, selector = ""): Promise<IPodMetrics> {
+  const podSelector = replicasets.map(replicaset => `${replicaset.getName()}-[[:alnum:]]{5}`).join("|");
+  const opts = { category: "pods", pods: podSelector, namespace, selector };
+
+  return metricsApi.getMetrics({
+    cpuUsage: opts,
+    memoryUsage: opts,
+    fsUsage: opts,
+    networkReceive: opts,
+    networkTransmit: opts,
+  }, {
+    namespace,
+  });
+}
+
 export class ReplicaSet extends WorkloadKubeObject {
   static kind = "ReplicaSet";
   static namespaced = true;

src/renderer/api/endpoints/stateful-set.api.ts

@@ -20,10 +20,11 @@
  */
 
 import get from "lodash/get";
-import type { IPodContainer } from "./pods.api";
 import { IAffinity, WorkloadKubeObject } from "../workload-kube-object";
 import { autoBind } from "../../utils";
 import { KubeApi } from "../kube-api";
+import { metricsApi } from "./metrics.api";
+import type { IPodContainer, IPodMetrics } from "./pods.api";
 import type { KubeJsonApiData } from "../kube-json-api";
 
 export class StatefulSetApi extends KubeApi<StatefulSet> {
@@ -49,6 +50,21 @@ export class StatefulSetApi extends KubeApi<StatefulSet> {
   }
 }
 
+export function getMetricsForStatefulSets(statefulSets: StatefulSet[], namespace: string, selector = ""): Promise<IPodMetrics> {
+  const podSelector = statefulSets.map(statefulset => `${statefulset.getName()}-[[:digit:]]+`).join("|");
+  const opts = { category: "pods", pods: podSelector, namespace, selector };
+
+  return metricsApi.getMetrics({
+    cpuUsage: opts,
+    memoryUsage: opts,
+    fsUsage: opts,
+    networkReceive: opts,
+    networkTransmit: opts,
+  }, {
+    namespace,
+  });
+}
+
 export class StatefulSet extends WorkloadKubeObject {
   static kind = "StatefulSet";
   static namespaced = true;