Add readinessProbe to CoreDNS

Fix golint failures under test/e2e/framework/metrics

Fix duplicate container query param on exec pod command

Update docs for Ingress-GCE related cluster addon

api: Correct a typo in the API docs for rolling update strategy

Use framework.ExpectNoError() instead Expect()

fix shellcheck in test/integration/... and test/kubemark/...

Call getRandomClusterZone() only if necessary

Fix golint failures on cmd/apis/extensions/...

Fix reconstruction of FC volumes

kubeadm: graduate control plane join phase

Don't return CSI driver unregistration error

Remove todos from init upload certs

Use Request Object interfaces instead of static scheme that is more appropriate for CRDs

Remove race condition with run-test

kubeadm: Don't load deprecated configs

Currently kubeadm supports a couple of configuration versions - v1alpha3 and
v1beta1. The former is deprecated, but still supported.

To discourage users from using it and to speedup conversion to newer versions,
we disable the loading of deprecated configurations by all kubeadm
sub-commands, but "kubeadm config migrate".

v1alpha3 is still present and supported at source level, but cannot be used
directly with kubeadm and some of its internal APIs.

The added benefit to this is, that users won't need to lookup for an old
kubeadm binary after upgrade, just because they were stuck with a deprecated
config version for too long.

To achieve this, the following was done:

- ValidateSupportedVersion now has an allowDeprecated boolean parameter, that
  controls if the function should return an error upon detecting deprecated
  config version. Currently the only deprecated version is v1alpha3.

- ValidateSupportedVersion is made package private, because it's not used
  outside of the package anyway.

- BytesToInitConfiguration and LoadJoinConfigurationFromFile are modified to
  disallow loading of deprecated kubeadm config versions. An error message,
  that points users to kubeadm config migrate is returned.

- MigrateOldConfig is still allowed to load deprecated kubeadm config versions.

- A bunch of tests were fixed to not expect success if v1alpha3 config is
  supplied.
Signed-off-by: Rostislav M. Georgiev <rostislavg@vmware.com>

Fix golint failures

Signed-off-by: He Xiaoxi <xxhe@alauda.io>

fixes: some wrong comments

Fix websocket e2e tests for https endpoints

Fix broken list of 'Service/Publishing services - service types'

Add code comments to guard inadvertent removal of insecure-bind-address

Correcting error on source codes

Add e2e test for scale sub-resource of statefulsets

Merge pull request #73961 from mattjmcnaughton/mattjmcnaughton/clarify-NetworkPolicy-policyTypes-in-docs

Clarify NetworkPolicy policyTypes in docs

Change kubelet metrics to conform metrics guidelines

Correct the count of evictionsNumber

allow apiservers to override the list of decorators

Handling for use_custom_instance_list in dump_nodes_with_logexporter

remove unnecessary scheme from config struct

prevent unhandled errors on colliding poststarthook registration