cluster/kube: emergency fixes after evition

Some pods got evicted. Some of them broke.

  - postgres in matrix and nginx in internet because of the new policies
    (chown issues)
  - cas proxy in matrix because apparently the image was not reuploaded
    to the regsitry after ceph-waw1 died, and another node didn't have it
  - registry because it had a weak image pin an downgraded to some
    broken version on another node

Change-Id: I836036872629843c8ede1b7f67982112c90d71f0
3 files changed