Comment 11 for bug 1882557

FWIW, based on line numbers the run from #10 is not using Alex's change [0], so may not be a valid test.

2020-07-14 21:53:03 DEBUG config-changed Traceback (most recent call last):
2020-07-14 21:53:03 DEBUG config-changed File "/var/lib/juju/agents/unit-hacluster-vault-2/charm/hooks/config-changed", line 660, in <module>
2020-07-14 21:53:03 DEBUG config-changed hooks.execute(sys.argv)
2020-07-14 21:53:03 DEBUG config-changed File "/var/lib/juju/agents/unit-hacluster-vault-2/charm/charmhelpers/core/hookenv.py", line 943, in execute
2020-07-14 21:53:03 DEBUG config-changed self._hooks[hook_name]()
2020-07-14 21:53:03 DEBUG config-changed File "/var/lib/juju/agents/unit-hacluster-vault-2/charm/hooks/config-changed", line 202, in config_changed
2020-07-14 21:53:03 DEBUG config-changed update_nrpe_config()
2020-07-14 21:53:03 DEBUG config-changed File "/var/lib/juju/agents/unit-hacluster-vault-2/charm/hooks/config-changed", line 612, in update_nrpe_config
2020-07-14 21:53:03 DEBUG config-changed nrpe_setup.write()
2020-07-14 21:53:03 DEBUG config-changed File "/var/lib/juju/agents/unit-hacluster-vault-2/charm/charmhelpers/contrib/charmsupport/nrpe.py", line 315, in write
2020-07-14 21:53:03 DEBUG config-changed self.nagios_servicegroups)
2020-07-14 21:53:03 DEBUG config-changed File "/var/lib/juju/agents/unit-hacluster-vault-2/charm/charmhelpers/contrib/charmsupport/nrpe.py", line 196, in write
2020-07-14 21:53:03 DEBUG config-changed with open(nrpe_check_file, 'w') as nrpe_check_config:
2020-07-14 21:53:03 DEBUG config-changed FileNotFoundError: [Errno 2] No such file or directory: '/etc/nagios/nrpe.d/check_corosync_rings.cfg'

[0] https://github.com/ajkavanagh/charm-helpers/blob/bug/1882557/charmhelpers/contrib/charmsupport/nrpe.py