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use kubectl create deployment to create deployment with --replicas and --port.

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Signed-off-by: Weiping Cai <weiping.cai@daocloud.io>
This commit is contained in:
Weiping Cai
2020-06-13 17:31:10 +08:00
parent 0061388373
commit cf3becadff
4 changed files with 14 additions and 11 deletions
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content/en/docs/reference/kubectl/docker-cli-to-kubectl.md
+11 -6
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@@ -13,8 +13,7 @@ You can use the Kubernetes command line tool kubectl to interact with the API Se
{{% capture body %}}
## docker run
To run an nginx Deployment and expose the Deployment, see [kubectl run](/docs/reference/generated/kubectl/kubectl-commands/#run).
To run an nginx Deployment and expose the Deployment, see [kubectl create deployment](/docs/reference/generated/kubectl/kubectl-commands#-em-deployment-em-).
docker:
```shell
@@ -36,12 +35,19 @@ kubectl:
```shell
# start the pod running nginx
kubectl run --image=nginx nginx-app --port=80 --env="DOMAIN=cluster"
kubectl create deployment --image=nginx nginx-app --port=80
```
```
deployment "nginx-app" created
deployment.apps/nginx-app created
```
```
# add env to nginx-app
kubectl set env deployment/nginx-app DOMAIN=cluster
```
```
deployment.apps/nginx-app env updated
{{< note >}}
`kubectl` commands print the type and name of the resource created or mutated, which can then be used in subsequent commands. You can expose a new Service after a Deployment is created.
{{< /note >}}
@@ -56,8 +62,7 @@ service "nginx-http" exposed
By using kubectl, you can create a [Deployment](/docs/concepts/workloads/controllers/deployment/) to ensure that N pods are running nginx, where N is the number of replicas stated in the spec and defaults to 1. You can also create a [service](/docs/concepts/services-networking/service/) with a selector that matches the pod labels. For more information, see [Use a Service to Access an Application in a Cluster](/docs/tasks/access-application-cluster/service-access-application-cluster).
By default images run in the background, similar to `docker run -d ...`. To run things in the foreground, use:
By default images run in the background, similar to `docker run -d ...`. To run things in the foreground, use [`kubectl run`](/docs/reference/generated/kubectl/kubectl-commands/#run) to create pod:
```shell
kubectl run [-i] [--tty] --attach <name> --image=<image>
```