Merged https://github.com/kubernetes-monitoring/kubernetes-mixin/pull/463 to remove duplicate entries for memory usage, however I'd like to move these changes to the Prometheus-Operator helm chart(https://github.com/helm/charts/pull/23024#issuecomment-661967101). I've regenerated the dashboards/alerts.

kube-apiserver has a histogram etcd_request_duration_seconds that
measures latency between the kube-apiserver and etcd instance.
This metrics is currently dropped by cluster-prometheus. Enable
this metrics so we have visibility into etcd latency.

We ensured that this does not enable other unwanted metrcis

count by(name) ({name=~"etcd_request.+"})

etcd_request_duration_seconds_bucket
etcd_request_duration_seconds_count
etcd_request_duration_seconds_sum

This reverts commit cdaaf3d5.

Signed-off-by: Benjamin <benjamin@yunify.com>

* adding security context to kube-rbac-proxy

* make clean generate-in-docker

* Revert "make clean generate-in-docker"

This reverts commit ed136f1e37fde3289b9560493a585c6edefaba94.

* make clean generate-in-docker

Co-authored-by: Latch M <latch_mihaylov@homedepot.com>