fix hack/lib/golang.sh for bash 4.3

Fix golint failures of test/e2e_node/services

Allow Kubelet to run with no Azure identity

feat: use framework.ExpectNoError in e2e apps disruption

simplify pluginwatcher close by removing waitgroup

fix CVE-2019-11244: `kubectl --http-cache=<world-accessible dir>` cre…

Add phase runner to kubeadm reset

cleanup container probe tests and add tcp probe case

Kubeadm: Refactor renewal package

Use framework.ExpectNoError() for e2e/common

Fix golint failures of e2e/framework/*.go

Impose length limit when concatenating revision history

enhance leader election doc

feat: implement "queue-sort" extension point for scheduling framework

Fix golint failures in cmd/kube-controller-manager

Fix golint issues in pkg/kubelet/oom

Fix golint failures of util/bandwith/*.go

Minor cleanups in pkg/proxy/endpoints.go

Fix initContainer failed to get its own field value as environment variable values

fix shellcheck failures in /hack/make-rules/update.sh,verify.sh

[kubeadm] improve validation message for join command

Staging legacy fake cloud provider

Revert "[Re-Apply][Distroless] Convert the GCE manifests for master containers."

Fix lint errors staging/src/k8s.io

pkg/proxy: add sig-network-approvers/sig-network-reviewers to OWNERS files

proxy: add some useful metrics

useInstanceMetadata should be enabled and Kubelet would use IMDS to get
node's information.

Don't create a RuntimeClassManager without a KubeClient

Update etcd* version to use latest released images.

Use framework.ExpectNoError() for e2e/