k8s-keystone-auth: Disable HTTP/2 on the auth webhook

[pierreprinetti]

Prevent HTTP/2 abuse.

Is the k8s-keystone-auth tested anywhere? I am not sure that passing an empty tls.Config is like not passing it, and I'd love to have some regression testing to confirm that.

@stephenfin you've committed in this space recently. Do you perhaps know?

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[pierreprinetti]

/test whateverisavailable

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[pierreprinetti]

@stlaz @ibihim do you perhaps know if k8s-keystone-auth is owned or tested on the Auth side?

[pierreprinetti]

/cherrypick release-4.14

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@pierreprinetti: once the present PR merges, I will cherry-pick it on top of release-4.14 in a new PR and assign it to you.

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/cherrypick release-4.14

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[pierreprinetti]

k8s-keystone-auth is not present in the OpenShift release payload.
OpenShift's Keystone-based authentication depends on oauth-server, that doesn't use code from this repository.

My understanding is that this code is not used in OpenShift.

/close

[openshift-ci]

@pierreprinetti: Closed this PR.

In response to this:

k8s-keystone-auth is not present in the OpenShift release payload.
OpenShift's Keystone-based authentication depends on oauth-server, that doesn't use code from this repository.

My understanding is that this code is not used in OpenShift.

/close

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