Bump k8s.io/kubernetes to 1.15.0

[josedonizetti]

fix for #4656

still trying to figure out a couple of things here.

[minikube-bot]

Can one of the admins verify this patch?

[josedonizetti]

A storage-provisioner dependency breaks if we bump k8s. https://github.com/r2d4/external-storage/blob/master/lib/controller/controller.go#L46
I'm looking into it.

[medyagh]

I am so excited for this PR !

[tstromberg]

A storage-provisioner dependency breaks if we bump k8s. https://github.com/r2d4/external-storage/blob/master/lib/controller/controller.go#L46
I'm looking into it.

Do we need the r2d4/external-storage fork any more? It isn't maintained, so if we can, it would be nice to switch to the upstream: https://github.com/kubernetes-incubator/external-storage

[josedonizetti]

@tstromberg Yup, we gonna switch. The r2d4/external-storage is 1506 commits behind.

I'm just looking the 18 commits that were done in this repo if maybe one of them we should try to move upstream.

[tstromberg]

@tstromberg Yup, we gonna switch. The r2d4/external-storage is 1506 commits behind.

I'm just looking the 18 commits that were done in this repo if maybe one of them we should try to move upstream.

Excellent. If nothing jumps out, I'd just switch implementations and see if the integration tests pass. If the feature it provided really was important, it would have test coverage =)

/cc @r2d4 in case he has any background to add here.

[medyagh]

/retest this please

[tstromberg]

Any luck with dropping the dependency on the r2d4 fork?

[tstromberg]

Related: #3628

[k8s-ci-robot]

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[medyagh]

seems to be an api change

--- FAIL: TestParseFeatureArgs (0.00s)
    --- FAIL: TestParseFeatureArgs/only_kubeadm_feature (0.00s)
        versions_test.go:148: Kubeadm Actual: map[], Expected: map[Auditing:true SelfHosting:false]
        versions_test.go:152: Component Actual: Auditing=true,SelfHosting=false, Expected: 
    --- FAIL: TestParseFeatureArgs/between_component_and_kubeadm_feature (0.00s)
        versions_test.go:148: Kubeadm Actual: map[], Expected: map[Auditing:true SelfHosting:false]
        versions_test.go:152: Component Actual: Auditing=true,PodPriority=true,SelfHosting=false,Accelerators=false, Expected: PodPriority=true,Accelerators=false

[josedonizetti]

@minikube-bot Ok to test

[josedonizetti]

@medyagh can you trigger minikube integration tests for this PR? pls

[medyagh]

@minikube-bot OK to test

[medyagh]

Looks great ! thank you for doing this !