Kubectl update configMap

Question

I am using the following command to create a configMap.

kubectl create configmap test --from-file=./application.properties --from-file=./mongo.properties --from-file=./logback.xml  

Now, I have modified a value for a key from mongo.properties which i need to update in kubernetes.

Option1 :-

kubectl edit test 

Here, it opens the entire file. But, I want to just update mongo.properties and hence want to see only the mongo.properties. Is there any other way?

Note :- I dont want to have mongo.properties in a separate configMap.

Thanks

Answer 1

Now you can. Just throw: kubectl edit configmap <name of the configmap> on your command line. Then you can edit your configuration.

Answer 2

Another option is actually you can use this command:

kubectl create configmap some-config \   --from-file=some-key=some-config.yaml \   -n some-namespace \   -o yaml \   --dry-run | kubectl apply -f -  

Refer to Github issue: Support updating config map and secret with --from-file