kubernetes-the-hard-way/docs/smoke-test.md

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# Smoke Test
This lab walks you through a quick smoke test to make sure things are working.
## Test
```
kubectl run nginx --image=nginx --port=80 --replicas=3
```
```
deployment "nginx" created
```
```
kubectl get pods -o wide
```
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```
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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
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```
```
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kubectl expose deployment nginx --type NodePort
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```
```
service "nginx" exposed
```
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> Note that --type=LoadBalancer will not work because we did not configure a cloud provider when bootstrapping this cluster.
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export NODE_PORT=$(kubectl get svc nginx --output=jsonpath='{range .spec.ports[0]}{.nodePort}')
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```
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gcloud compute firewall-rules create kubernetes-nginx-service \
--network kubernetes \
--allow=tcp:${NODE_PORT}
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```
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```
gcloud compute instances list
```
````
NAME ZONE MACHINE_TYPE PREEMPTIBLE INTERNAL_IP EXTERNAL_IP STATUS
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controller0 us-central1-f n1-standard-1 10.240.0.20 XXX.XXX.XXX.XXX RUNNING
controller1 us-central1-f n1-standard-1 10.240.0.21 XXX.XXX.XXX.XXX RUNNING
controller2 us-central1-f n1-standard-1 10.240.0.22 XXX.XXX.XXX.XXX RUNNING
etcd0 us-central1-f n1-standard-1 10.240.0.10 XXX.XXX.XXX.XXX RUNNING
etcd1 us-central1-f n1-standard-1 10.240.0.11 XXX.XXX.XXX.XXX RUNNING
etcd2 us-central1-f n1-standard-1 10.240.0.12 XXX.XXX.XXX.XXX RUNNING
worker0 us-central1-f n1-standard-1 10.240.0.30 XXX.XXX.XXX.XXX RUNNING
worker1 us-central1-f n1-standard-1 10.240.0.31 XXX.XXX.XXX.XXX RUNNING
worker2 us-central1-f n1-standard-1 10.240.0.32 XXX.XXX.XXX.XXX RUNNING
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````
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```
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curl http://XXX.XXX.XXX.XXX:${NODE_PORT}
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```
```
<!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>
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```