All the controllers should use context for signalling termination of communication with API server. Once kcm cancels context all the cert controllers which are started via kcm should cancel the APIServer request in flight instead of hanging around.
The `root_ca_cert_publisher_sync_duration_seconds` metric tracks the sync
duration in the root CA cert publisher per code and namespace. In
clusters with a high namespace turnover (like CI clusters), this may
cause the kube-controller-manager to expose over 100k series to
Prometheus, which may cause degradation of that service.
Drop the `namespace` label to remove the metrics' cardinality, tracking
this metric by namespace does not justify the impact of keeping it.
- Move from the old github.com/golang/glog to k8s.io/klog
- klog as explicit InitFlags() so we add them as necessary
- we update the other repositories that we vendor that made a similar
change from glog to klog
* github.com/kubernetes/repo-infra
* k8s.io/gengo/
* k8s.io/kube-openapi/
* github.com/google/cadvisor
- Entirely remove all references to glog
- Fix some tests by explicit InitFlags in their init() methods
Change-Id: I92db545ff36fcec83afe98f550c9e630098b3135
