use MakeAbsolutePath to convert path in Windows

fix test error: allow relative path for local volume

fix comments

fix comments and add windows unit tests

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apiserver: add warning about not trusting authz of aggregator

The aggregator does authorization for proxied resources. But aggregated apiservers should not depend on it, but do delegated authorization in addition.

```release-note
Add warnings that authors of aggregated API servers must not rely on authorization being done by the kube-apiserver.
```

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Kube apiserver ServerRunOptions set default called before use

**What this PR does / why we need it**:

move `ServerRunOptions` set default function  `defaultOptions` out of `CreateKubeAPIServerConfig`, it should be called before real use `CreateNodeDialer`. So move it to cobra.Command just after kube-apiserver flags parsed.

Similarly `ServerRunOptions.Validate` move there too.

**Release note**:

```release-note
NONE
```

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kubectl: make error with resource list prettier

**What this PR does / why we need it**:

Previously, running commands like `kubectl get` with no further
arguments would print a list of valid resource types with an error
messages formatted like so:

    <snip>
      * serviceaccounts (aka 'sa')
      * services (aka 'svc')
      * statefulsets (aka 'sts')
      * storageclasses (aka 'sc')error: Required resource not specified.
    Use "kubectl explain <resource>" for a detailed description of that resource (e.g. kubectl explain pods).
    See 'kubectl get -h' for help and examples.

This commit adds extra spacing so it now looks pretty:

    <snip>
      * serviceaccounts (aka 'sa')
      * services (aka 'svc')
      * statefulsets (aka 'sts')
      * storageclasses (aka 'sc')

    error: Required resource not specified.
    Use "kubectl explain <resource>" for a detailed description of that resource (e.g. kubectl explain pods).
    See 'kubectl get -h' for help and examples.





**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

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Bump godep version to v80

**What this PR does / why we need it**:
Update the minimum godep, to v80 (supposed to be the final version).

**Release note**:
```release-note
NONE
```

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Support custom test configurations

**What this PR does / why we need it**:

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #

**Special notes for your reviewer**:

**Release note**:

```release-note
Support custom test configuration for IPAM performance integration tests
```

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wire through humanreadable print flags

**Release note**:
```release-note
NONE
```

~~Work in progress... Opening PR now to gather feedback as this is implemented.~~

Begin implementing pieces needed to retrieve humanreadable printers from a set of flags.
Proposal: https://docs.google.com/document/d/19ZZFVe9oD1KQmk5uExggRWtRl_hKGfYnBXvHZJlgEro/edit#heading=h.pnvbfi14v4zz

cc @soltysh @deads2k @pwittrock

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Fixes incorrect atomic usage

Fixes incorrect assignment for atomic increment.
NOTE: This will be a vet error in go version 1.10.
ERROR: "direct assignment to atomic value".
No other erroneous atomic assignments found.

```release-note
NONE
```

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Adding a test for kubemci remove-clusters

Ref https://github.com/GoogleCloudPlatform/k8s-multicluster-ingress/issues/58

Adding an e2e test for `kubemci remove-clusters` command. 
The test creates an ingress and then removes it from all clusters.

cc @G-Harmon

```release-note
NONE
```

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Added downgrade notice to Changelog

**What this PR does / why we need it**:

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #

**Special notes for your reviewer**:

**Release note**:

```release-note

```

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Adding an e2e test for verifying https-only annotation with kubemci

Fixes https://github.com/GoogleCloudPlatform/k8s-multicluster-ingress/issues/142

Refactoring existing GCE ingress test to be reusable with kubemci.
Similar to https://github.com/kubernetes/kubernetes/pull/61871

cc @G-Harmon @nicksardo @madhusudancs 

```release-note
NONE
```

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Update image for ingress downgrade test

**What this PR does / why we need it**:
Ref: #62075

**Release note**:

```release-note
None
```

/assign @bowei

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Update GLBC manifest to v1.0.1

**Release note**:
```release-note
GCE: Updates GLBC version to 1.0.1 which includes a fix which prevents multi-cluster ingress objects from creating full load balancers.
```

/assign @bowei  @nikhiljindal 
cc @csbell @rramkumar1 @freehan @MrHohn

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oidc authentication: email_verified claim is not required for JWT validation

**What this PR does / why we need it**:
Currently the "email_verified" claim is required by the API server to verify an OIDC token. Many OIDC providers do not support the "email_verified" claim. We want to be able to allow their OIDC tokens as valid.

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #59496

**Release note**:

```release-note
OIDC authentication now allows tokens without an "email_verified" claim when using the "email" claim. If an "email_verified" claim is present when using the "email" claim, it must be `true`.
```
/sig auth
/kind feature
/assign @ericchiang 

CC: @sreetummidi

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make use of auto generated LoadBalancerStatus.DeepCopy

Remove LoadBalancerStatusDeepCopy in helpers.go, and use the auto generated `LoadBalancerStatus.DeepCopy` in pkg/apis/core/zz_generated.deepcopy.go.

**Release note**:

```release-note
NONE
```

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add kubectl api-resources command

**What this PR does / why we need it**:
As the RBAC role need to be related to resources. I think we can use the command to get the supported resources. 

```
# ./cluster/kubectl.sh api-resources   
NAME                                  SHORTNAMES   APIGROUP                       NAMESPACED   KIND
bindings                                                                          true         Binding
componentstatuses                     cs                                          false        ComponentStatus
configmaps                            cm                                          true         ConfigMap
endpoints                             ep                                          true         Endpoints
events                                ev                                          true         Event
limitranges                           limits                                      true         LimitRange
namespaces                            ns                                          false        Namespace
nodes                                 no                                          false        Node
persistentvolumeclaims                pvc                                         true         PersistentVolumeClaim
persistentvolumes                     pv                                          false        PersistentVolume
pods                                  po                                          true         Pod
podtemplates                                                                      true         PodTemplate
replicationcontrollers                rc                                          true         ReplicationController
resourcequotas                        quota                                       true         ResourceQuota
secrets                                                                           true         Secret
serviceaccounts                       sa                                          true         ServiceAccount
services                              svc                                         true         Service
externaladmissionhookconfigurations                admissionregistration.k8s.io   false        ExternalAdmissionHookConfiguration
initializerconfigurations                          admissionregistration.k8s.io   false        InitializerConfiguration
customresourcedefinitions             crd          apiextensions.k8s.io           false        CustomResourceDefinition
apiservices                                        apiregistration.k8s.io         false        APIService
controllerrevisions                                apps                           true         ControllerRevision
daemonsets                            ds           apps                           true         DaemonSet
deployments                           deploy       apps                           true         Deployment
replicasets                           rs           apps                           true         ReplicaSet
statefulsets                          sts          apps                           true         StatefulSet
tokenreviews                                       authentication.k8s.io          false        TokenReview
localsubjectaccessreviews                          authorization.k8s.io           true         LocalSubjectAccessReview
selfsubjectaccessreviews                           authorization.k8s.io           false        SelfSubjectAccessReview
subjectaccessreviews                               authorization.k8s.io           false        SubjectAccessReview
horizontalpodautoscalers              hpa          autoscaling                    true         HorizontalPodAutoscaler
jobs                                               batch                          true         Job
certificatesigningrequests            csr          certificates.k8s.io            false        CertificateSigningRequest
daemonsets                            ds           extensions                     true         DaemonSet
deployments                           deploy       extensions                     true         Deployment
ingresses                             ing          extensions                     true         Ingress
networkpolicies                       netpol       extensions                     true         NetworkPolicy
podsecuritypolicies                   psp          extensions                     false        PodSecurityPolicy
replicasets                           rs           extensions                     true         ReplicaSet
networkpolicies                       netpol       networking.k8s.io              true         NetworkPolicy
poddisruptionbudgets                  pdb          policy                         true         PodDisruptionBudget
clusterrolebindings                                rbac.authorization.k8s.io      false        ClusterRoleBinding
clusterroles                                       rbac.authorization.k8s.io      false        ClusterRole
rolebindings                                       rbac.authorization.k8s.io      true         RoleBinding
roles                                              rbac.authorization.k8s.io      true         Role
podpresets                                         settings.k8s.io                true         PodPreset
storageclasses                        sc           storage.k8s.io                 false        StorageClass
```
**Which issue this PR fixes**: fixes https://github.com/kubernetes/kubernetes/issues/42932

**Special notes for your reviewer**:

**Release note**:

```release-note
add kubectl api-resources command to discovery of resources
```

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Don't quit without printing API latencies in density test if it failed

This is the reason why we are missing quite some data points in our perf-dash graphs for density test (as I mentioned in https://github.com/kubernetes/kubernetes/issues/62064#issuecomment-378235194)

```release-note
NONE
```

/cc @wojtek-t

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Add support for multiple certificates to targetproxy

```release-note
NONE
```

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Fix e2e tests for regional

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fix local volume issue on Windows

**What this PR does / why we need it**:
Actually local volume does not work on Windows up to now, with this PR, local volume would work on Windows. Here is a [local volume example on Windows](https://github.com/andyzhangx/demo/tree/master/windows/local) 

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #62010

**Special notes for your reviewer**:
This PR would not `MkdirAll(dir, 0750)` on windows node, the MkdirAll process would happen on https://github.com/kubernetes/kubernetes/blob/master/pkg/util/mount/mount_windows.go#L59-L62

**Release note**:

```
fix local volume issue on Windows
```

/sig windows
/sig storage

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kubeadm: Controllable timeout for join failures

**What this PR does / why we need it**:

This PR introduces a timeout for `kubeadm join`. During that time kubeadm will try to join as many times as possible. The timeout can be controlled via the `discoveryTimeout` config option. Its default value is 5 minutes.

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes kubernetes/kubeadm#677

**Special notes for your reviewer**:

/cc @kubernetes/sig-cluster-lifecycle-pr-reviews
/area kubeadm
/assign @luxas
/assign @timothysc

**Release note**:

```release-note
kubeadm: Introduce join timeout that can be controlled via the discoveryTimeout config option (set to 5 minutes by default).
```

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Add e2e test for CRD Watch

**What this PR does / why we need it**:
This adds an e2e test to watch for custom resources. 
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #55538

**Special notes for your reviewer**:
This PR depends on some functions from #60331, and shouldn't be merged before that one gets merged.
**Release note**:

```release-note
Add e2e test for CRD Watch
```

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bug fix: create/update CRD panic when mutating webhook configured

apiextentions apiserver use its own scheme to create a admission chain before creating the apiextensions apiserver config.
Fixes #61355

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

Signed-off-by: Rostislav M. Georgiev <rostislavg@vmware.com>