Puppet last run errors
This alert triggers when there’s an error while running Puppet on a machine.
View the logs
To view the errors in Kibana, first login to Logit, and then
run the following query (where $hostname is the short name of the machine
linked to the alert, for example ip-10-1-2-3):
syslog_program:"puppet-agent" AND host:$hostname
You may also SSH into the machine and look at syslog:
tail /var/log/syslog
Re-run Puppet
You can also try running Puppet again and check the output:
govuk_puppet --test
If you see Skipping because of failed dependencies in the output, and the error dpkg was interrupted, then it is likely the new instance failed to provision.
Check the puppet lock
Sometimes this alert means that there is a puppet lock on the machine, so puppet won’t be run. You can list current locks by running:
govuk_puppet -l
Could not parse puppet summary file
This usually means the Puppet client is unable to retrieve the catalogue from the master.
The file that the check uses is /var/lib/puppet/state/last_run_summary.yaml. If it is only a few lines long, check logs for the error as above.