Add example of pod exec to examples/

examples/pod-exec.js

@@ -0,0 +1,35 @@
+//
+// Execute commands non-interactively in a pod
+//
+const Client = require('kubernetes-client').Client;
+const config = require('kubernetes-client').config;
+
+async function main() {
+  try {
+
+    const client = new Client({ config: config.fromKubeconfig(), version: '1.9' });
+
+    // Pod with single container
+    let res = await client.api.v1.namespaces('namespace_name').pods('pod_name').exec.post({
+      qs: {
+        command: [ 'ls', '-al' ]
+      }
+    });
+    console.log(res.body);
+    console.log(res.messages);
+
+    // Pod with multiple containers /must/ specify a container
+    res = await client.api.v1.namespaces('namespace_name').pods('pod_name').exec.post({
+      qs: {
+        command: [ 'ls', '-al' ],
+        container: 'container_name'
+      }
+    });
+    console.log(res.body);
+
+  } catch (err) {
+    console.error('Error: ', err);
+  }
+}
+
+main();