Create examples/scale-deployment.js

A simple example of scaling a particular deployment by namespace and name

Author: phantomlsh

examples/scale-deployment.js

@@ -0,0 +1,29 @@
+const k8s = require('@kubernetes/client-node');
+
+const kc = new k8s.KubeConfig();
+kc.loadFromFile('./config');
+
+const k8sApi = kc.makeApiClient(k8s.AppsV1Api);
+
+const targetDeploymentName = 'docker-test-deployment';
+
+async function scale(namespace, name, replicas) {
+  // find the particular deployment
+  const res = await k8sApi.listNamespacedDeployment(namespace);
+
+  let deployment = null;
+  for (const d of res.body.items) {
+    if (d.metadata.name === targetDeploymentName) {
+      deployment = d;
+      break;
+    }
+  }
+
+  // edit
+  deployment.spec.replicas = replicas;
+
+  // replace
+  await k8sApi.replaceNamespacedDeployment(name, namespace, deployment);
+}
+
+scale('default', 'docker-test-deployment', 3);