Deployment strategy for ARC/runner pipeline

[dchourasia]

We are using self-hosted-runners deployed on our kubernetes cluster and have a central repo where we have our ARC charts and custom Dockerfile for runner image.

We want to implement a CI/CD pipeline for this repo, so that every time we make a change to either controller chart or runner image, it automatically gets deployed to our kubernetes cluster.

and We are preferring default deployment strategy of kubernetes, Rolling Update, but we want to ensure that it does not interrupt any ongoing builds on the runners.

We were looking if there is any standard way available with ARC to achieve a zero-downtime update of ARC/runner, so that it waits for ongoing builds before updating the ARC/runner.