whentimeslows/website
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

deprecated kubectl run command flag replicas for en

Browse Source 
Signed-off-by: Weiping Cai <weiping.cai@daocloud.io>
This commit is contained in:
Weiping Cai
2020-06-06 15:45:54 +08:00
parent 347d38361f
commit e990e46f63
2 changed files with 12 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files
content/en/docs/reference/kubectl/docker-cli-to-kubectl.md
+7 -7
View File
@@ -13,7 +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 Pod and expose the Pod, see [kubectl run](/docs/reference/generated/kubectl/kubectl-commands/#run).
docker:
@@ -39,22 +39,22 @@ kubectl:
kubectl run --image=nginx nginx-app --port=80 --env="DOMAIN=cluster"
```
```
deployment "nginx-app" created
pod/nginx-app created
```
{{< 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.
`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 Pod is created.
{{< /note >}}
```shell
# expose a port through with a service
kubectl expose deployment nginx-app --port=80 --name=nginx-http
kubectl expose pod nginx-app --port=80 --name=nginx-http
```
```
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 using kubectl, you can create a [Pod](/docs/concepts/workloads/pods/pod/) to ensure that pod are running nginx. 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:
@@ -65,8 +65,8 @@ kubectl run [-i] [--tty] --attach <name> --image=<image>
Unlike `docker run ...`, if you specify `--attach`, then you attach `stdin`, `stdout` and `stderr`. You cannot control which streams are attached (`docker -a ...`).
To detach from the container, you can type the escape sequence Ctrl+P followed by Ctrl+Q.
Because the kubectl run command starts a Deployment for the container, the Deployment restarts if you terminate the attached process by using Ctrl+C, unlike `docker run -it`.
To destroy the Deployment and its pods you need to run `kubectl delete deployment <name>`.
Because the kubectl run command starts a Pod for the container, the Pod restarts if you terminate the attached process by using Ctrl+C, unlike `docker run -it`.
To destroy the pod you need to run `kubectl delete pod <name>`.
## docker ps