ci: Run cosa unprivileged

[cgwalters]

As a workaround for a virtiofs bug:
https://gitlab.com/virtio-fs/virtiofsd/-/merge_requests/197

xref coreos/coreos-assembler#3428 (comment)

---

[jlebon]

Hmm IIRC, I don't think you can sudo at all without runAsUser: 0. Probably we should add a unprivshwrap() or something that switches to nonroot first. But for now, it should probably work to just do the cosa build as nonroot?

[cgwalters]

Hmm IIRC, I don't think you can sudo at all without runAsUser: 0

You may be right (if I have to I'll extract the pod yaml and test this manually outside of PRs), but let's see if we can do it this way first, because it aligns more closely with other things (e.g. GH Actions).

But for now, it should probably work to just do the cosa build as nonroot?

Right, will try that next.

[cgwalters]

/override ci/prow/fcos-e2e
Can't affect that

[openshift-ci]

@cgwalters: Overrode contexts on behalf of cgwalters: ci/prow/fcos-e2e

In response to this:

/override ci/prow/fcos-e2e
Can't affect that

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[cgwalters]

continuous-integration/jenkins/pr-merge — This commit looks good

🎉