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change simple nginx example to use kubectl create instead of kubectl run

This commit is contained in:
Eric Briand 2018-10-12 14:43:06 +02:00
parent cb42cf0cfd
commit f0cdc65016
1 changed files with 16 additions and 4 deletions
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staging/simple-nginx.md
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@ -8,13 +8,13 @@ to Kubernetes and running your first containers on the cluster.
From this point onwards, it is assumed that `kubectl` is on your path from one of the getting started guides.
The [`kubectl run`](https://kubernetes.io/docs/reference/generated/kubectl/kubectl-commands#run) line below will create two [nginx](https://hub.docker.com/_/nginx/) [pods](https://kubernetes.io/docs/concepts/workloads/pods/pod-overview/) listening on port 80. It will also create a [deployment](https://kubernetes.io/docs/concepts/workloads/controllers/deployment/) named `my-nginx` to ensure that there are always two pods running.
The [`kubectl create`](https://kubernetes.io/docs/reference/generated/kubectl/kubectl-commands#create) line below will create a [deployment](https://kubernetes.io/docs/concepts/workloads/controllers/deployment/) named `my-nginx` to ensure that there are always a [nginx](https://hub.docker.com/_/nginx/) [pod](https://kubernetes.io/docs/concepts/workloads/pods/pod-overview/) running.
```bash
kubectl run my-nginx --image=nginx --replicas=2 --port=80
kubectl create deployment --image nginx my-nginx
```
Once the pods are created, you can list them to see what is up and running:
You can list the pods to see what is up and running:
```bash
kubectl get pods
@ -26,7 +26,19 @@ You can also see the deployment that was created:
kubectl get deployment
```
### Exposing your pods to the internet.
You can also scale the deployment to ensure there is two nginx pods running:
```bash
kubectl scale deployment --replicas 2 my-nginx
```
You can now list the pods to see there is two up and running:
```bash
kubectl get pods
```
### Exposing your pods to the internet
On some platforms (for example Google Compute Engine) the kubectl command can integrate with your cloud provider to add a [public IP address](https://kubernetes.io/docs/concepts/services-networking/service/#publishing-services---service-types) for the pods,
to do this run: