I'm currently working with some configmaps and I've noticed, that there are some documents in the configmap having redundant values/ referencing the same value e.g.

apiVersion: v1
kind: ConfigMap
metadata:
  name: my-configmap
  labels:
    app: my-app
data:
  some_file: |-
     ...
     foo1=bar
     ...
  some_other_file: |-
     ...
     foo2=bar
     ...

Is it somehow possible, to use a variable instead of writing bar two times? This way I wouldn't have to search every config file if bar changes at some point.