Without this it fails after deployments were switched from
extensions to apps with
```
E0902 11:25:51.197420 1 reflector.go:283] github.com/kubernetes-incubator/cluster-proportional-autoscaler/pkg/autoscaler/k8sclient/k8sclient.go:96: Failed to watch *v1.Node: unknown (get nodes)
E0902 11:25:53.118490 1 reflector.go:283] github.com/kubernetes-incubator/cluster-proportional-autoscaler/pkg/autoscaler/k8sclient/k8sclient.go:96: Failed to watch *v1.Node: unknown (get nodes)
E0902 11:25:54.997493 1 reflector.go:283] github.com/kubernetes-incubator/cluster-proportional-autoscaler/pkg/autoscaler/k8sclient/k8sclient.go:96: Failed to watch *v1.Node: unknown (get nodes)
E0902 11:25:57.097423 1 reflector.go:283] github.com/kubernetes-incubator/cluster-proportional-autoscaler/pkg/autoscaler/k8sclient/k8sclient.go:96: Failed to watch *v1.Node: unknown (get nodes)
E0902 11:25:59.097417 1 reflector.go:283] github.com/kubernetes-incubator/cluster-proportional-autoscaler/pkg/autoscaler/k8sclient/k8sclient.go:96: Failed to watch *v1.Node: unknown (get nodes)
I0902 11:25:59.697325 1 k8sclient.go:221] Falling back to extensions/v1beta1, error using apps/v1: deployments.apps "calico-typha" is forbidden: User "system:serviceaccount:kube-system:typha-cpha" cannot get resource "deployments/scale" in API group "apps" in the namespace "kube-system"
E0902 11:25:59.699833 1 autoscaler_server.go:120] Update failure: the server could not find the requested resource
```
Ref. https://github.com/kubernetes/test-infra/pull/13709
Work around Linux kernel bug that sometimes causes multiple flows to
get mapped to the same IP:PORT and consequently some suffer packet
drops.
Also made the same update in kubelet.
Also added cross-pointers between the two bodies of code, in comments.
Some day we should eliminate the duplicate code. But today is not
that day.
If konnectivity service is enabled, the etcd client will now use it.
This did require moving a few methods to break circular dependencies.
Factored in feedback from lavalamp and wenjiaswe.
Adds a new flag which allows users to specify a regexp
which will effectively whitelist certain taints and
allow the test framework to startup tests despite having
tainted nodes.
Fixes an issue where e2e tests were unable to be run
in tainted environments due to the framework waiting for
all the nodes to be schedulable without any tolerations.
This patch moves the HostUtil functionality from the util/mount package
to the volume/util/hostutil package.
All `*NewHostUtil*` calls are changed to return concrete types instead
of interfaces.
All callers are changed to use the `*NewHostUtil*` methods instead of
directly instantiating the concrete types.
