Restart pods when configmap updates in Kubernetes

Question

I'm trying to rolling start my deployment. Is there a way to restart pods when configmap is updated?

Answer 1

You can update a metadata label that is not relevant for your deployment. it will trigger a rolling-update

for example:

metadata:
  labels:
    configmap-version: 1

Answer 2

Use Deployments, and consider your ConfigMaps to be immutable.

When you want to change your config, make a new file called configmap and make chnages to that file and point your deployment to this new updated configmap file.

Comments

Immutable ConfigMaps is the right approach for me, too.

app-configmap-v11

setting new version configmap name in the deployment.yml, solves consistency problems too.