Add init container fields to ignored paths in StatefulSet diff

[scholzj]

Type of change

• Bugfix
• Enhancement / new feature
• Refactoring

Description

Persistent Kafka / Zookeeper on Kubernetes use init container to set permissions. Some fields of the init container are changing the triggering permanent rolling update. This PR adds these fields to the ignore list:

/spec/template/spec/initContainers/0/imagePullPolicy
/spec/template/spec/initContainers/0/resources
/spec/template/spec/initContainers/0/terminationMessagePath
/spec/template/spec/initContainers/0/terminationMessagePolicy

[ppatierno]

@scholzj have you already tried these changes ? I was notified by a 0.3.0-rc2 by GitHub but then the release wasn't there in order to test it.

[tombentley]

LGTM

[scholzj]

@ppatierno Yeah, I had the RC2 ready, but then I realized that we have to also handle the init container when the storage type is changed. That will be another PR.