There are a lot of HPC sysadmins that are very busy lately. A lot of third party software started dropping CentOS 7 support this year, and they never upgraded their clusters to 8/9.
The situation is pretty backwards for us, ironically.
Upgrading the OS is easy. Initial work is a couple of days, rest of the deployment is an hour or so, but the software we need to run doesn't support CentOS 7+. Containerization might help or not, but most software is distributed as RPM packages and some of them are written with things like Python2.7.
Upgrading the OS is easy. Initial work is a couple of days, rest of the deployment is an hour or so, but the software we need to run doesn't support CentOS 7+. Containerization might help or not, but most software is distributed as RPM packages and some of them are written with things like Python2.7.