This lab walks you through a quick smoke test to make sure things are working.
kubectl run nginx --image=nginx --port=80 --replicas=3
deployment "nginx" created
kubectl get pods -o wide
NAME READY STATUS RESTARTS AGE IP NODE
nginx-2032906785-ms8hw 1/1 Running 0 21s 10.200.2.2 worker2
nginx-2032906785-sokxz 1/1 Running 0 21s 10.200.1.2 worker1
nginx-2032906785-u8rzc 1/1 Running 0 21s 10.200.0.2 worker0
kubectl expose deployment nginx --type NodePort
service "nginx" exposed
Note that --type=LoadBalancer will not work because we did not configure a cloud provider when bootstrapping this cluster.
Grab the NodePort that was setup for the nginx service:
export NODE_PORT=$(kubectl get svc nginx --output=jsonpath='{range .spec.ports[0]}{.nodePort}')
gcloud compute firewall-rules create kubernetes-nginx-service \
--allow=tcp:${NODE_PORT} \
--network kubernetes
Grab the EXTERNAL_IP for one of the worker nodes:
export NODE_PUBLIC_IP=$(gcloud compute instances describe worker0 \
--format 'value(networkInterfaces[0].accessConfigs[0].natIP)')
Test the nginx service using cURL:
curl http://${NODE_PUBLIC_IP}:${NODE_PORT}
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
body {
width: 35em;
margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif;
}
</style>
</head>
<body>
<h1>Welcome to nginx!</h1>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p>
<p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.</p>
<p><em>Thank you for using nginx.</em></p>
</body>
</html>