Delete a configmap itself from Kubernetes

Question

I am trying to delete a configmap from a k8s namespace .. i created the configmap using the command below

kubectl -n namespacename create -f configmap.yaml

checking the k8s cheat sheet https://kubernetes.io/docs/reference/kubectl/cheatsheet/ i didn't find anything related .. kindly advise how to do that ?

Kamol Hasan · Accepted Answer · 2019-12-12T08:51:56.667

58

# kubectl delete configmap  <configmap-name>  -n  <namespace-name> 
$ kubectl delete configmap    my-cofigmap     -n   namespacename

# kubectl delete -f <file-directory> -n <namespace-name>
$ kubectl delete -f  configmap.yaml  -n  namespacename

edited Dec 12 '19 at 08:51

answered Dec 12 '19 at 08:42

Kamol Hasan

yah that works :) thanks .. small question if i deleted it while its used will it affect the running pods ? – Hany Habib Dec 12 '19 at 09:18
2

@HanyHabib The data of the ConfigMap still stays mounted in the running Pods. However, if a Pod is recreated, it will not be able to find the ConfigMap and an error will result. – weibeld Dec 12 '19 at 09:23

score 5 · Answer 2 · edited May 27 '22 at 15:19

5

You can delete a configMap by it's name. If you are unsure you can check the configMaps within a namespace by using:

kubectl get configmap -n namespacename`

once you have them you can run a delete command:

kubectl delete configmap <configmapname> -n namespacename

edited May 27 '22 at 15:19

Amal Thundiyil

answered Dec 12 '19 at 08:43

Fermin

score 1 · Answer 3 · answered Dec 12 '19 at 08:43

1

Should work this way:

kubectl delete configmap <configmap-name> -n <namespace-name>

Your configmap's name should be defined in your configmap.yaml file.

answered Dec 12 '19 at 08:43

score 1 · Answer 4 · answered Dec 12 '19 at 08:44

1

Easiest way if you created the ConfigMap with a YAML file is to delete it by referencing the YAML file as well:

kubectl delete -n <namespacename> -f configmap.yaml

answered Dec 12 '19 at 08:44

weibeld

4 Answers4