Signed-off-by: Harry Zhang <harryz@hyper.sh>

Combine delete with update

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Don't ignore error when Discovery().ServerResources() in kubectl run

Ref #27014
This doesn't fix the flake directly, but expose the error happened when the flake happens. 

@kubernetes/kubectl @caesarxuchao 

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GCI: add support for network plugin

I had run e2e against a cluster with both master and nodes on GCI a couple of times. The PR auto tests will cover the hybrid cluster with just master on GCI.

cc/ @roberthbailey @fabioy @kubernetes/goog-image 

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Avoid pathname collisions in TestNewOICAuthProvider.

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Exit image puller subshell

Exit the subshell with 0 so even if the last docker pull fails the pod doesn't end up in the error state. 

Revert "Only build essential targets for node e2e"

Wait for arc.getArchive() to complete before running tests

Only build essential targets for node e2e

Bump cAdvisor to v0.23.3

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Mark known-flags to merge via union.

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Stop 'kubectl drain' deleting pods with local storage.

Kubectl drain will not continue if there are pods with local storage unless
forced with --delete-local-data.

Fixes #23972

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Resource quantity must support leading and trailing whitespace in JSON for back-compat

For backwards compatibility reasons, we must continue to support leading or trailing whitespace on Quantity values when deserialized from JSON.  We must also support numbers serialized into yaml (`cpu: 1`) and JSON (`"cpu": 1`)

Fixes #26898

This avoids pointless merge conflicts in a simple text file.
Fixes #27088.

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Fix Retry-After in clients

Fix #26871

Unless forced with --delete-local-data.  Also a refactoring of the
kubectl drain logic that selects/rejects pods and produces error/warning
messages.

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Extend logging for UnschedulableNodes

Ref #25845

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Node e2e Makefile support for running remote tests against kubernetes…

Fixes #26665

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…-node-e2e-images.

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Custom sort function for InitContainersStatuses

Order in init containers matters. Statues shoudln't be sorted by name.

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Move quota usage testing for loadbalancers into unit tests

Fixes https://github.com/kubernetes/kubernetes/issues/26319

* moved testing for node port and load balancer usage in quota to unit tests
* remove node port and node port -> loadbalancer service testing out of e2e
 * covered already in replenishment_controller_test scenario

Given the time it takes to even allocate a load balancer, it seems better to test that outside of this test case to avoid unnecessary flakes.

/cc @bprashanth 

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Avoid comparing pod-template-hash when getting a deployment's new/old RSes

Will need to cherry pick to 1.2 also. 

Ref #26724 #26797 @kubernetes/deployment @ihmccreery 

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Flake 26210: decouple explicit access from port 80

Flake #26210 only happens for port 80. To decouple the possible causes, all
tests with explicit port 80 are moved to port 1080 (these were 80% of the flakes).
The urls without a specified port (which map to port 80 though) are left untouched.

If port 1080 does not show up as flake now, there is really a connection to the
actual port number.

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Reduce huge amount of logs in large cluster tests

When running tests in 2000-node clusters, I got more than 100.000 lines like this:
```
Jun  8 01:03:11.850: INFO: Condition NetworkUnavailable of node gke-gke-large-cluster-default-pool-1-03ee5a12-knrw is true instead of false. Reason: NoRouteCreated, message: Node created w       ithout a route
```
that doesn't give much value.

This is PR is reducing the number of logs.

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GCI: fix the issue #26379

This PR deletes docker0 explicitly to fix the issue. In some cases, coexistence of docker0 and cbr0 make troubles in GCI-based cluster instances.

I verified it in GKE. With the fix, fluentd-gcp pod shows no error. "curl google.com" can work inside a pod. Mark it as P0 to match the issue priority.

@a-robinson @roberthbailey @freehan @kubernetes/goog-image 

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shorten gc stress test

But the stress test is still run twice, because the `KUBE_TEST_API_VERSIONS` env var in test-integration.sh doesn't have any effect on the testapi because of the [defaulting](https://github.com/kubernetes/kubernetes/blob/master/pkg/api/testapi/testapi.go#L164).

cc @lavalamp 

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Fix a minor typo in CHANGELOG.md

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Retain debug logs for etcd when there is a place to keep them.

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Fix traces

Ref #26185

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DeepCopy should generate types within k8s.io/kubernetes

Take an incremental step to control which types get DeepCopy generated.

Fixes #26036, #24667

@thockin @wojtek-t @lavalamp

Also includes other improvements:
- Makefile rule to run tests against remote instance using existing host or image
- Makefile will reuse an instance created from an image if it was not torn down
- Runner starts gce instances in parallel with building source
- Runner uses instance ip instead of hostname so that it doesn't need to resolve
- Runner supports cleaning up files and processes on an instance without stopping / deleting it
- Runner runs tests using `ginkgo` binary to support running tests in parallel

Rename ENABLE_NODE_AUTOSCALER to ENABLE_CLUSTER_AUTOSCALER - part 1

Added extra logging to cluster autoscaler e2e tests.

Added extra logging to cluster autoscaler e2e tests to track flakiness.