Review and unify image pull policy and port protocols across different components

The following discussion from !78 (merged) should be addressed:

• @WarheadsSE started a discussion: (+4 comments)

  Looking at the diffs of the objects, I have a few items that raise an eyebrow:

  • ImagePullPolicy is inconsitently changed.
  • Containers[].Ports[].Protocol

cc @mnielsen @pursultani