Edit kubernetes resource using kubectl run --command

Question

I am trying to create a pod run a command edit an exist resource , but its not working My CR is

apiVersion: feature-toggle.resource.api.sap/v1
kind: TestCR
metadata:
  name: test
  namespace: my-namespace
spec:
  enabled: true
  strategies:
    - name: tesst
      parameters:
        perecetage: "10"

The command I am trying to run is

kubectl run kube-bitname --image=bitnami/kubectl:latest -n  my-namespace --command -- kubectl get testcr test -n my-namespace -o json | jq '.spec.strategies[0].parameters.perecetage="66"' | kubectl apply -f -

But This not work ? any idea ?

Can you add more context? I would like to understand why you need to let it run in a separate pod. Did you think about other options? — ChiliChonka
– ChiliChonka, Commented Sep 19, 2022 at 12:51
Can you just run that kubectl command locally, delete everything up through the --command -- options? Are you running the temporary pod with a ServiceAccount with RBAC permissions to read TestCR objects? When you say it doesn't work, what does happen? — David Maze
– David Maze, Commented Sep 19, 2022 at 13:19
@DavidMaze it works if I just run the kubectl without the kubectl run --command — wael mashal
– wael mashal, Commented Sep 19, 2022 at 13:23
@Manuel I have a cronJob scheduled every 2 days with create a job. The job will create the pod through this command for updating my custom CR — wael mashal
– wael mashal, Commented Sep 19, 2022 at 13:24

mauricubo · Accepted Answer · 2022-09-19 16:54:35Z

2

It would be better if you post more info about the error o the trace that are you getting executing the command, but I have a question that could be a good insight about what is happening here.
Has the kubectl command that you are running inside the bitnami/kubectl:latest any context that allow it to connect to your cluster? If you take a look into the kubectl docker hub documentation you can see that you should map a config file to the pod in order to connect to your own cluster.

$ docker run --rm --name kubectl -v /path/to/your/kube/config:/.kube/config bitnami/kubectl:latest

answered Sep 19, 2022 at 16:54

mauricubo

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