danclough
commented
7 months ago It looks like the new telegraf .deb packages specify the username in the .postinst file as a variable "TELEGRAF_USER", so you can check for the value using this:
grep '^TELEGRAF_USER=' /var/lib/dpkg/info/telegraf.postinst | sed -r 's:TELEGRAF_USER="(.*)":\1:'And my guess is if you don't see that, it'd be safe to default to telegraf.
Describe the bug In recent versions of the telegraf .deb package, it appears that the InfluxDB team has begun to follow Debian Policy §9.2.1 which states that package-owned user and group names should begin with an underscore (_) so there are no name collisions with locally-created users.
This causes the Telegraf playbook to fail because it expects a user/group named "telegraf" to exist after package installation, but does not find it, so the permissions can't be set on the config files.
Installation method/version
Ansible Version
Targetted hosts Concerns the following OS(es):
Expected behavior The playbook may need to be modified to check if the newly-created user and group are prefixed with an underscore, and to use that value accordingly when setting ownership of the config.
Additional context If you manually rename the user/group to remove the underscore, and also change the systemd unit file to reflect the new user/group name, everything with this playbook works as expected. But this is obviously a manual intervention workaround, which is not ideal. I don't know when I'll have time to look deeper into a solution but wanted to share the finding here in case others run into this issue as well.