Regressions in 3227.2.0 release - tracking parent issue

[miao0miao]

We created this issue to group all related issues/discussions to the regressions observed in 3227.2.0, we are working on a patch release currently and will keep posting here for updates.

Related issues:

• Can't login via vault ssh to EC2 instance built from Flatcar 3227.2.0 #804
• Wireguard does not work after upgrade to 3227.2.0 #808 (PR: coreos-base/init: keep static network configuration flatcar-archive/coreos-overlay#2061)
• multipathd fails to start after 3139.2.3 upgrade to 3227.2.0 #809 (PR: prod_image_util: extract gcc libs to /usr/lib64 scripts#391)
• Ignition: Bad networkd translation #812 (PR: sys-apps/ignition: add networkd translate fix flatcar-archive/coreos-overlay#2060)
• Cannot SSH into Flatcar 3227.2.0 instance created in OpenStack #817 (PR: systemd/system: enable cloudinit for openstack init#76)
• fix tmpfile entry for resolv.conf link (PR: sys-apps/systemd: fix tmpfile entry for resolv.conf link flatcar-archive/coreos-overlay#2057, discussion: https://kubernetes.slack.com/archives/C03GQ8B5XNJ/p1658762999205499)

The release is tracked under column 2022-08-01:
https://github.com/orgs/flatcar-linux/projects/7/views/8

• remaining issues in systemd-networkd:
  • Flatcar instance at Linode loses network connectivity after 3227.2.0 upgrade #807
  • https://groups.google.com/g/flatcar-linux-user/c/44jLwvlogqQ

[dongsupark]

Updated the title and the description, as they are not only DHCP issues.

[dongsupark]

Updated the description, as the recent releases fixed most issues.
Only systemd-networkd issues are in progress.

[pothos]

We also have #685 still open as regression from an earlier release

[tormath1]

I think we can close this for now as #685 can live on its own (and should be soon fixed).