Dears, As you may recall, the CentOS Linux 8 (as opposed to CentOS Stream 8) is reaching its EOL (End Of Life) Dec 31st, 2021 (that is, in eleven days). [1] Due to that, the OpenDev team (that hosts kolla's repos and the CI/CD that we rely on) has decided to drop the EOLed images January 14th, 2022. [2] This impacts both Kolla and Kolla Ansible in subtle ways - both operator-wise and contributor-wise. The EM (Extended Maintenance) branches, Train and Ussuri, in both projects, rely solely on CentOS Linux 8, the Stream variant is *not* supported there. This means that in 2022 we are forced to cease to test these branches against CentOS Linux 8 (we will still test the two other distros - Ubuntu and Debian). Operators are advised to upgrade to Victoria or (preferably) later (psst, go Xena). Furthermore, CentOS Linux 8 is currently supported in Victoria but this support will also end naturally with 2022 on the horizon. Operators are advised to migrate to CentOS Stream 8 and images based on it. [1] https://www.centos.org/centos-linux-eol/ [2] http://lists.opendev.org/pipermail/service-announce/2021-December/000029.htm... Kind regards, -yoctozepto