chore: add kubectl equivalent examples

Author: Ananya2001-an

examples/kubectl/equivalents/namespace-create-yaml.js

@@ -0,0 +1,24 @@
+const k8s = require('@kubernetes/client-node');
+const fs = require('fs');
+
+const kc = new k8s.KubeConfig();
+kc.loadFromDefault();
+
+const k8sApi = kc.makeApiClient(k8s.CoreV1Api);
+
+/**
+ * This sample code is Javascript equivalent to `kubectl apply -f namespace.yml`
+ * You can find the sample namespace.yml file in the examples/resources folder
+ */
+
+const namespaceCreateYaml = async () => {
+    try {
+        const namespaceYaml = k8s.loadYaml(fs.readFileSync('../../resources/namespace.yml'));
+        const createdNamespace = await k8sApi.createNamespace(namespaceYaml);
+        console.log('New namespace created: ', createdNamespace.body);
+    } catch (err) {
+        console.error(err);
+    }
+};
+
+namespaceCreateYaml();

examples/kubectl/equivalents/namespace-create.js

@@ -0,0 +1,26 @@
+const k8s = require('@kubernetes/client-node');
+
+const kc = new k8s.KubeConfig();
+kc.loadFromDefault();
+
+const k8sApi = kc.makeApiClient(k8s.CoreV1Api);
+
+/**
+ * This sample code is Javascript equivalent to `kubectl create namespace test`
+ */
+
+const namespaceCreate = async () => {
+    try {
+        const namespace = {
+            metadata: {
+                name: 'test',
+            },
+        };
+        const createdNamespace = await k8sApi.createNamespace(namespace);
+        console.log('New namespace created: ', createdNamespace.body);
+    } catch (err) {
+        console.error(err);
+    }
+};
+
+namespaceCreate();

examples/kubectl/equivalents/namespace-list.js

@@ -0,0 +1,21 @@
+const k8s = require('@kubernetes/client-node');
+
+const kc = new k8s.KubeConfig();
+kc.loadFromDefault();
+
+const k8sApi = kc.makeApiClient(k8s.CoreV1Api);
+
+/**
+ * This sample code is Javascript equivalent to `kubectl get ns`
+ */
+
+const namespaceList = async () => {
+    try {
+        const namespaces = await k8sApi.listNamespace();
+        namespaces.body.items.map(namespace => console.log(namespace.metadata.name))
+    } catch (err) {
+        console.error(err);
+    }
+};
+
+namespaceList();

examples/kubectl/equivalents/pod-create.js

@@ -0,0 +1,34 @@
+const k8s = require('@kubernetes/client-node');
+
+const kc = new k8s.KubeConfig();
+kc.loadFromDefault();
+
+const k8sApi = kc.makeApiClient(k8s.CoreV1Api);
+
+/**
+ * This sample code is Javascript equivalent to `kubectl run demo-pod --image=nginx --namespace=default`
+ */
+
+const podCreate = async () => {
+    const pod = {
+        metadata:{
+            name: "demo-pod"
+        },
+        spec:{
+            containers:[{
+                name: "nginx-container",
+                image:"nginx"
+            }]
+        }
+    }
+    try{
+        const createdPod = await k8sApi.createNamespacedPod('default', pod)
+        console.log("Created pod: " + createdPod.body)
+
+    }
+    catch(err){
+        console.error(err);
+    }
+};
+
+podCreate();

examples/kubectl/equivalents/pod-filter-by-namespace.js

@@ -0,0 +1,21 @@
+const k8s = require('@kubernetes/client-node');
+
+const kc = new k8s.KubeConfig();
+kc.loadFromDefault();
+
+const k8sApi = kc.makeApiClient(k8s.CoreV1Api);
+
+/**
+ * This sample code is Javascript equivalent to `kubectl get pods --namespace=default`
+ */
+
+const podFilterByNamespace = async () => {
+    try {
+        const pods = await k8sApi.listNamespacedPod('default');
+        pods.body.items.map(pod => console.log(pod.metadata.name))
+    } catch (err) {
+        console.error(err);
+    }
+};
+
+podFilterByNamespace();

examples/kubectl/equivalents/resourceQuota-create.js

@@ -0,0 +1,32 @@
+const k8s = require('@kubernetes/client-node');
+
+const kc = new k8s.KubeConfig();
+kc.loadFromDefault();
+
+const k8sApi = kc.makeApiClient(k8s.CoreV1Api);
+
+/**
+ * This sample code is Javascript equivalent to `kubectl create resourcequota my-quota --hard=pods=3`
+ */
+
+const resourceQuotaCreate = async () => {
+    try{
+        const quota = {
+            metadata:{
+                name: "my-quota"
+            },
+            spec:{
+                hard:{
+                    pods:"3"
+                }
+            }
+        }
+        const createdQuota = await k8sApi.createNamespacedResourceQuota("default", quota);
+        console.log("Created quota: " + createdQuota.body)
+    }
+    catch(err){
+        console.error(err);
+    }
+};
+
+resourceQuotaCreate();

examples/kubectl/equivalents/resourceQuota-list.js

@@ -0,0 +1,22 @@
+const k8s = require('@kubernetes/client-node');
+
+const kc = new k8s.KubeConfig();
+kc.loadFromDefault();
+
+const k8sApi = kc.makeApiClient(k8s.CoreV1Api);
+
+/**
+ * This sample code is Javascript equivalent to `kubectl get resourcequotas --all-namespaces`
+ */
+
+const resourceQuotaList = async () => {
+    try{
+        const resourceQuotas = await k8sApi.listResourceQuotaForAllNamespaces();
+        resourceQuotas.body.items.map(quota => console.log(quota.metadata.name))
+    }
+    catch(err){
+        console.error(err);
+    }
+};
+
+resourceQuotaList();

examples/resources/namespace.yml

@@ -0,0 +1,4 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: test