You’re Cletus Kubernetus: a software developer, and a proud Fedora Linux user.1 You know Kubernetes, especially after the time you migrated some services to it. Everything is calm. Your pods are running. Your service is up. Business as usual. You release some minor changes to production. Everything is still working. Great! But then you receive a message from a colleague. Oh no, something has gone wrong with a particular piece of functionality! No worries. You’re using Helm. You can roll this cha...