Flatcar kubevirt image doesn't apply ignition added via cloudInitDrive

[PeaceRebel]

Environment

• Make target: PACKER_FLAGS="--var 'kubernetes_semver=v1.34.0'" make build-kubevirt-qemu-flatcar
• **Run using container image? (Y/N):N
• Environment vars:

• Vars file:

What steps did you take and what happened?

Built the image using the above mentioned command, created a container disk with the generated and used it as node image for a cluster following this doc and using flatcar template. Cannot ssh to the vm and the controlplane is not initialized.

What did you expect to happen?

Ignition should be applied and controlplane initialized.

Relevant log output

Log Output

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Anything else you would like to add?

Qemu guest agent was connected, tried retrieving the authorized keys for user core, there none. I could ssh to the VM after adding keys via the agent. Also, noticed that the flatcar.oem.id=kubevirt kargs was missing on the built image.

---

/kind bug

[alicefr]

/cc

[alicefr]

@PeaceRebel I set the variable export OEM_ID=kubevirt and build with your command from the description and I'm able to login into the VM and the ignition is applied.
Example:

root@flatcar-2 ~ # cat /run/ignition.json 
{"ignition":{"config":{"replace":{"verification":{}}},"proxy":{},"security":{"tls":{}},"timeouts":{},"version":"3.6.0-experimental"},"kernelArguments":{},"passwd":{"users":[{"name":"core","sshAuthorizedKeys":["ssh-rsa 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 core"]}]},"storage":{"files":[{"group":{},"path":"/etc/profile.d/systemd-pager.sh","user":{},"contents":{"compression":"","source":"data:,%23%20Tell%20systemd%20to%20not%20use%20a%20pager%20when%20printing%20information%0Aexport%20SYSTEMD_PAGER%3Dcat%0A","verification":{}},"mode":420}]},"systemd":{"units":[{"enabled":false,"name":"zincati.service"},{"dropins":[{"contents":"[Service]\n# Override Execstart in main unit\nExecStart=\n# Add new Execstart with `-` prefix to ignore failure`\nExecStart=-/usr/sbin/agetty --autologin core --noclear %I $TERM\n","name":"autologin-core.conf"}],"name":"serial-getty@ttyS0.service"}]}}

[PeaceRebel]

Thanks @alicefr

This worked.

[AverageMarcus]

Does that mean we're missing the OEM_ID env var in the docs?

[PeaceRebel]

Does that mean we're missing the OEM_ID env var in the docs?

Yes, I didn't find it any docs (related to flatcar). So is the make build-kubevirt-qemu-flatcar, which I found at kubernetes-sigs/cluster-api-provider-kubevirt#311 (comment)

[AverageMarcus]

Oh wow, looks like we don't have any Kubevirt docs at all 😢

Would you mind opening an issue for that? Might be a nice task for someone to pick up.