What does this MR do?
This MR upgrades k8s library moving from the whole kubernetes codebase to just the go client.
Why was this MR needed?
#2742 requires k8s 1.7
Are there points in the code the reviewer needs to double check?
Does this MR meet the acceptance criteria?
Added for this feature/bug
All builds are passing
Branch has no merge conflicts with
master(if you do - rebase it please)
What are the relevant issue numbers?
Relates to #2742