run cosa build in the test stages to take advantage of KVM

[cheesesashimi]

Because the image build for cosa-build takes so long, we're running into
timeouts by the time the test stages are run. Instead, we should also run cosa
build concurrently in the test stages which are able to take advantage of KVM
and reduce the overall time of the build / test run.

[openshift-ci]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[cheesesashimi]

/test pj-rehearse

[cheesesashimi]

/test pj-rehearse

[miabbott]

Tests are failing with qemu-img: /var/tmp/mantle-qemu4189136715/disk3207901125: Image creation needs a size parameter

I think this is usually an indication that the qcow2 image can't be found when cosa kola run tries to create a VM

[cheesesashimi]

/assign @miabbott

[miabbott]

Just thinking through the steps out loud...

build-test-qemu-img is just a cosa container + a golang builder container with the CoreOS Layering test binary built + copied into the resulting container image.

That image is then used to call out to prow-build.sh which is doing the usual cosa fetch and cosa build operations before running whatever test is asked.

Should just work ™️ ! (test-qemu-metal might get dicey building the extra artifacts, but let's see what happens)

/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: cheesesashimi, miabbott

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[openshift-ci]

@cheesesashimi: Updated the ci-operator-master-configs configmap in namespace ci at cluster app.ci using the following files:

• key openshift-os-master.yaml using file ci-operator/config/openshift/os/openshift-os-master.yaml
• key openshift-os-master__periodic.yaml using file ci-operator/config/openshift/os/openshift-os-master__periodic.yaml

Details

In response to this:

Because the image build for cosa-build takes so long, we're running into
timeouts by the time the test stages are run. Instead, we should also run cosa
build concurrently in the test stages which are able to take advantage of KVM
and reduce the overall time of the build / test run.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[openshift-ci]

@cheesesashimi: all tests passed!

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Details

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