Test-infra: Migrate away from deprecated `--build-cluster` flag and format.

[clarketm]

What should be cleaned up or changed:

Migrate away from and deprecate --build-cluster flag and format.

• [x] Migrate K8s Prow deployments to use --kubeconfig (#16906)
• [x] Deprecation and removal of mkbuild-cluster
  
  
  
  • [x] Create an announcement and set removal date, #15285.
  
  
  • [x] Replace mkbuild-cluster references in getting_started_deploy.md with the equivalent gencred command(s), #15285.
  
  
  • [x] Remove mkbuild-cluster source code (ref), to be completed May 2020, #15287.
  
  
  • [x] Remove mkbuild-cluster label (ref), to be completed May 2020, #15287.
  
  

/assign

[clarketm]

/help

[k8s-ci-robot]

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[BenTheElder]

Migrate K8s Prow deployments to use --kubeconfig

Doesn't seem like contributors can handle this? Also you've already assigned yourself...?

[clarketm]

/unassign

[stevekuznetsov]

/assign

[clarketm]

/kind oncall-hotlist

The only thing left is on-call process for k8s Prow:

1. create a kubeconfig file
2. save it in a secret, and
3. define it (using --kubeconfig) on the k8s resources that require it (e.g. plank, sinker, deck).

[fejta]

Would be great to make some progress on here, happy to help out during my oncall shift.

[fejta]

/assign @fejta @clarketm

Do we have a tool to create the kubeconfig file? (convert the existing one?)

[clarketm]

Do we have a tool to create the kubeconfig file? (convert the existing one?)

Yes, that is gencred. Its usage has also been added to the Prow getting started guide https://github.com/kubernetes/test-infra/pull/15285.

[fejta]

/unassign @clarketm
I'll give it a go then, thanks!

[fejta]

Still pending

[clarketm]

Migrate K8s Prow deployments to use --kubeconfig

This should now only be a single command followed by a PR to update object config yaml. Can someone with k8s-prow cluster access give this a try before May 2020?

---

Note: The build-cluster format is planned for removal in May 2020 (ref) (https://github.com/kubernetes/test-infra/pull/15287).

---

Update
Done via #16906

[fejta]

/unassign @stevekuznetsov @fejta
/assign @clarketm
/close

[k8s-ci-robot]

@fejta: Closing this issue.

In response to this:

/unassign @stevekuznetsov @fejta
/assign @clarketm
/close

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[clarketm]

/reopen

[k8s-ci-robot]

@clarketm: Reopened this issue.

In response to this:

/reopen

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[clarketm]

/close

[k8s-ci-robot]

@clarketm: Closing this issue.

In response to this:

/close

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