Some functionality in hack/lib is currently depended on by
cluster/common.sh so kube-up from the full release tar (which
does not include hack/) is currently broken. With this PR we
create cluster/lib/ and move the necessary bits from hack/
over to get kube-up working again.

Fixes: 96d1b8d1Signed-off-by: Mike Danese <mikedanese@google.com>

Fix fake docker client to corretly report status of containers

Add a container runtime mock for testing

Revert "Remove FailedResourceType and return custom error"

Improve ES test resilience 

Add soak tests to source control.

Changes required for test analyzer

Run test for grabbing metrics from Kubelet only on GCE

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Label 3 flaky deployment e2e tests with [Flaky]

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Fix data race by eliminating concurrency in test

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Kubelet doesn't perform checkpointing and loses all its internal states after
restarts. It'd then mistaken pods from the api server as new pods and attempt
to go through the admission process. This may result in pods being rejected
even though they are running on the node (e.g., out of disk situation). This
change adds a condition to check whether the pod was seen before and categorize
such pods as updates. The change also removes freeze/unfreeze mechanism used to
work around such cases, since it is no longer needed and it stopped working
correctly ever since we switched to incremental updates.

Label [Skipped] tests apprpriately

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Collapse REBOOT_SKIP_TESTS into GCE_DEFAULT_SKIP_TESTS, and remove GCE_SOAK_CONTINUOUS_SKIP_TESTS as redundant (see notes)

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Implement JSON printing for test summaries

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