powershell pod failing in kubernetes cluster

Question

I need to run powershell as an container in kubernetes

I am using following deployment file sample.yaml

apiVersion: v1
kind: Pod
metadata:
  name: powershell
spec:
  containers:
  - name: powershell
    image: mcr.microsoft.com/powershell:latest

When I run kubectl apply -f sample.yaml

I get the following error on kubectl get pods

powershell        0/1     CrashLoopBackOff   3 (50s ago)   92s

I did check the log kubectl logs powershell

PowerShell 7.2.6
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Type 'help' to get help.

PS /> ←[?1h

But when i run same image as a docker container with following command its working

docker run --rm -it mcr.microsoft.com/powershell:latest

Answer 1

If you want to keep a container for running, you should write like this yaml..

apiVersion: v1
kind: Pod
metadata:
  name: powershell
spec:
  containers:
  - name: powershell
    image: mcr.microsoft.com/powershell:latest
    command: ["pwsh"]
    args: ["-Command", "Start-Sleep", "3600"]

[root@master1 ~]# kubectl get pod powershell
NAME         READY   STATUS    RESTARTS   AGE
powershell   1/1     Running   0          3m32s
[root@master1 ~]# kubectl exec -it powershell -- pwsh
PowerShell 7.2.6
Copyright (c) Microsoft Corporation.

https://aka.ms/powershell
Type 'help' to get help.

PS /> date
Thu Oct 13 12:50:24 PM UTC 2022
PS />