Spotted on Jessie labs instances when running an apt-get upgrade:
Unpacking prometheus-node-exporter (0.14.0~git20170523-1) over (0.13.0~rc.2+ds-1) ...
Processing triggers for systemd (215-17+deb8u7) ...
Setting up prometheus-node-exporter (0.14.0~git20170523-1) ...
Configuration file '/etc/default/prometheus-node-exporter'
==> Modified (by you or by a script) since installation.
==> Package distributor has shipped an updated version.
What would you like to do about it ? Your options are:
Y or I : install the package maintainer's version
N or O : keep your currently-installed version
D : show the differences between the versions
Z : start a shell to examine the situation
The default action is to keep your current version.
*** prometheus-node-exporter (Y/I/N/O/D/Z) [default=N] ?
chown: invalid group: ‘prometheus:prometheus’
chown: invalid group: ‘prometheus:prometheus’$ id prometheus uid=14736(prometheus) gid=500(wikidev) groups=500(wikidev) $ getent passwd prometheus prometheus:x:14736:500:Jermaineberkley:/home/prometheus:/bin/bash $ getent group prometheus $
It looks like the Debian package does not create the prometheus group. Another potential issue is that there is a wmflabs user with the same name:
$ ldaplist -l passed prometheus dn: uid=prometheus,ou=people,dc=wikimedia,dc=org uidNumber: 14736 gidNumber: 500