I see that there is a journald_input app in the splunk forwarder install, but I can't seem to find any information on how to use it. I ran:
/opt/splunkforwarder/bin/splunk enable app journald_input
But it doesn't appear to be ingesting any entries from the journal.
The app is enabled, but is an input enabled (they're separate)? Use btool to check
splunk btool inputs list --app=journald_input
or examine the inputs.conf files
less /opt/splunkforwarder/etc/apps/journald_input/default/inputs.conf /opt/splunkforwarder/etc/apps/journald_input/local/inputs.conf
The app is enabled, but is an input enabled (they're separate)? Use btool to check
splunk btool inputs list --app=journald_input
or examine the inputs.conf files
less /opt/splunkforwarder/etc/apps/journald_input/default/inputs.conf /opt/splunkforwarder/etc/apps/journald_input/local/inputs.conf
Ah, thanks. I guess /opt/splunkforwarder/etc/apps/journald_input/README/inputs.conf.spec is the reference then. It also wasn't entirely clear to me that the "<name>" for the input appears to be arbitrary.
Unfortunately for the moment, it looks like this will not work on EL7 as it uses the --output-fields option to journalctl which is not present there.