When looking at a specific host the page just show Debian as the OS. It would be nice to see the release name as well (Jessie, Stretch, Buster ..).
Example: https://debmonitor.wikimedia.org/hosts/contint1001.wikimedia.org
| Running kernel | #1 SMP Debian 4.9.168-1+deb9u2~deb8u1 (2019-05-14) |
| OS | Debian |
| Last update | 8 minutes ago |
| External resources | Puppetboard, Icinga, RackTables, Netbox |
I understand that this might seem confusing, but it was decided from the start that debmonitor should not keep track of those, because the idea of a specific release of Debian is very aleatory based on which APT repository you setup in the host and the packages you install.
The other way of looking at it is that a package version in a Debian repository is not for a specific release, a specific release uses that version but the versions are independent of that.
CC @MoritzMuehlenhoff FYI
Yeah, what Riccardo said. This was added at a time when we still had Ubuntu (and given that we aim to make debmonitor a generally useful tool outside of WMF there might still be people running a mix). The data that you quoted is actually a good example; by default 4.9 is only shipped in Stretch, while we also use it on Jessie.
I just felt it would give an extra information when one has a fleet of Jessie, Stretch, Buster servers. That might gives a lead as to why a machine as an old/new package. But I understand it is a design choice, I guess the OS field can even be entirely removed now :)