Upgrade kubernetes dependencies to 1.19.0-rc.4

[rifelpet]

This is a find/replace of v0.18.1 to v0.19.0-rc.2 in go.mod and then running make gomod

[k8s-ci-robot]

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[hakman]

@rifelpet tomorrow should be a .rc1 release. Should we wait for it. Many things were blocked from entering .rc0.

[rifelpet]

sounds good to me. ill use this as a sandbox to get the builds working with the updated deps and then update it to rc.1 when it is released.

[hakman]

Sounds perfect

[rifelpet]

some troubleshooting notes:

There are failures anytime the apimachinery code is exercised:

TestCreateClusterWithINGWSpecified: create_cluster_integration_test.go:191: error running create cluster: error writing updated configuration: error writing Cluster "private.example.com": error marshaling object: error encoding object: converting (*kops.EtcdClusterSpec) to (*v1alpha2.EtcdClusterSpec): unknown conversion

The error is always for EtcdClusterSpec (though its possible if we fix it then we'll get an error for the next impacted field). This seems to be related to kubernetes/kubernetes#90018

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We're also getting interface type errors for logr which is used by klog. This seems to fix it but will need to be merged and propagated go-logr/logr#20 otherwise we're in a bit of a dependency mess until all our deps update to the newer version of logr.

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lastly theres a github.com/googleapis/gnostic case change that was a pain to update on my case-insensitive mac: google/gnostic#157

[rifelpet]

🎉
/test pull-kops-e2e-k8s-containerd

[k8s-ci-robot]

@rifelpet: The following test failed, say /retest to rerun all failed tests:

Test name	Commit	Details	Rerun command
pull-kops-e2e-k8s-containerd	e496d55	link	/test pull-kops-e2e-k8s-containerd

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[rifelpet]

/hold for #9802 to merge

[rifelpet]

/hold cancel

this is ready to go

[olemarkus]

/lgtm

[rifelpet]

Just in time for the 1.19.0 k8s release tomorrow :) so much for the head start

[hakman]

/lgtm