Allow override QPS and Burst via flag (#1778)
Allow override QPS and Burst via flag (#1778)

* Allow override QPS and Burst via flag.

Add `--kube-api-qps` and `--kube-api-burst` command-line flags
to control client QPS and Burst respectively.

The default value is set to 0 to keep backward compatibility.

Signed-off-by: Pierangelo Di Pilato <b6054fff5975a97a6b1347c22e6e7915c701af4c@gmail.com>

* Inline validation functions

Signed-off-by: Pierangelo Di Pilato <b6054fff5975a97a6b1347c22e6e7915c701af4c@gmail.com>
knative/pkg,knative/pkg