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Update static-pod.md 

- Fixed brain flatuence around which runtime I was testing
- Outputs changed
- Noted added about crictl ps's default behavior of outputting sha256sum in image name
- Image name in outputs have been shortened per Slack convo https://kubernetes.slack.com/archives/C02PZMA3R6E/p1643026840047600
pull/31410/head
Chris Short 2022-01-24 14:40:52 -05:00
parent d158cdf028
commit a819c51c22
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content/en/docs/tasks/configure-pod-container/static-pod.md
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@ -42,7 +42,7 @@ The `spec` of a static Pod cannot refer to other API objects
{{< include "task-tutorial-prereqs.md" >}} {{< version-check >}}
This page assumes you're using {{< glossary_tooltip term_id="containerd" >}} to run Pods,
This page assumes you're using {{< glossary_tooltip term_id="cri-o" >}} to run Pods,
and that your nodes are running the Fedora operating system.
Instructions for other distributions or Kubernetes installations may vary.
@ -162,18 +162,20 @@ crictl ps
The output might be something like:
```
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f6d05272b57e nginx:latest "nginx" 8 minutes ago Up 8 minutes k8s_web.6f802af4_static-web-fk-node1_default_67e24ed9466ba55986d120c867395f3c_378e5f3c
CONTAINER IMAGE CREATED STATE NAME ATTEMPT POD ID
129fd7d382018 docker.io/library/nginx@sha256:... 11 minutes ago Running web 0 34533c6729106
```
Note: `crictl` outputs the image URI and SHA-256 checksum. `NAME` will look more like: `docker.io/library/nginx@sha256:0d17b565c37bcbd895e9d92315a05c1c3c9a29f762b011a10c54a66cd53c9b31`.
You can see the mirror Pod on the API server:
```shell
kubectl get pods
```
```
NAME READY STATUS RESTARTS AGE
static-web-my-node1 1/1 Running 0 2m
NAME READY STATUS RESTARTS AGE
static-web 1/1 Running 0 2m
```
{{< note >}}
@ -190,18 +192,18 @@ If you try to use `kubectl` to delete the mirror Pod from the API server,
the kubelet _doesn't_ remove the static Pod:
```shell
kubectl delete pod static-web-my-node1
kubectl delete pod static-web
```
```
pod "static-web-my-node1" deleted
pod "static-web" deleted
```
You can see that the Pod is still running:
```shell
kubectl get pods
```
```
NAME READY STATUS RESTARTS AGE
static-web-my-node1 1/1 Running 0 12s
NAME READY STATUS RESTARTS AGE
static-web 1/1 Running 0 4s
```
Back on your node where the kubelet is running, you can try to stop the container manually.
@ -210,13 +212,13 @@ automatically:
```shell
# Run these commands on the node where the kubelet is running
crictl stop f6d05272b57e # replace with the ID of your container
crictl stop 129fd7d382018 # replace with the ID of your container
sleep 20
crictl ps
```
```
CONTAINER ID IMAGE COMMAND CREATED ...
5b920cbaf8b1 nginx:latest "nginx -g 'daemon of 2 seconds ago ...
CONTAINER IMAGE CREATED STATE NAME ATTEMPT POD ID
89db4553e1eeb docker.io/library/nginx@sha256:... 19 seconds ago Running web 1 34533c6729106
```
## Dynamic addition and removal of static pods
@ -236,7 +238,6 @@ sleep 20
crictl ps
```
```
CONTAINER ID IMAGE COMMAND CREATED ...
e7a62e3427f1 nginx:latest "nginx -g 'daemon of 27 seconds ago
CONTAINER IMAGE CREATED STATE NAME ATTEMPT POD ID
f427638871c35 docker.io/library/nginx@sha256:... 19 seconds ago Running web 1 34533c6729106
```