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[Bas de Bruijne <1951875@xxxxxxxxxxxxxxxxxx>]

** Also affects: charm-placement
   Importance: Undecided
       Status: New

** No longer affects: charm-placement

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https://bugs.launchpad.net/bugs/1951875

Title:
  Nagios peer config error: Could not find any host matching 'juju-
  placement-1'

Status in Nagios Charm:
  New

Bug description:
  Nagios dashboard fails with:

  --------------------------------------------------------------
  [1637248412] Nagios 3.5.1 starting... (PID=16822)
  [1637248412] Local time is Thu Nov 18 15:13:32 UTC 2021
  [1637248412] LOG VERSION: 2.0
  [1637248412] livestatus: Livestatus 1.2.8p16 by Mathias Kettner. Socket: '/var/lib/nagios3/livestatus/socket'
  [1637248412] livestatus: Please visit us at http://mathias-kettner.de/
  [1637248412] livestatus: Hint: please try out OMD - the Open Monitoring Distribution
  [1637248412] livestatus: Please visit OMD at http://omdistro.org
  [1637248412] livestatus: Warning: environment_macros are enabled. This might decrease the overall nagios performance
  [1637248412] livestatus: Finished initialization. Further log messages go to /var/log/nagios3/livestatus.log
  [1637248412] Event broker module '/usr/lib/check_mk/livestatus.o' initialized successfully.
  [1637248412] Error: Could not find any host matching 'juju-placement-1' (config file '/etc/nagios3/conf.d/juju-hostgroup_juju-placement.cfg', starting on line 4)
  [1637248412] Error: Could not expand members specified in hostgroup (config file '/etc/nagios3/conf.d/juju-hostgroup_juju-placement.cfg', starting on line 4)
  [1637248412] Bailing out due to one or more errors encountered in the configuration files. Run Nagios from the command line with the -v option to verify your config before restarting. (PID=16822)
  [1637248412] livestatus: deinitializing
  [1637248412] Caught SIGSEGV, shutting down...
  --------------------------------------------------------------

  --------------------------------------------------------------
  ubuntu@nagios2-2:~$ cat /etc/nagios3/conf.d/juju-hostgroup_juju-placement.cfg
  # Configuration file /etc/nagios3-inprogress/conf.d/juju-hostgroup_juju-placement.cfg
  # Edited by PyNag on Mon Nov 22 18:59:07 2021

  define hostgroup {
           hostgroup_name                 juju-placement
           notes                          #autogenerated#
           members                        juju-placement-0,juju-placement-1
  }
  --------------------------------------------------------------

  Running
  $ juju status --model foundations-maas:openstack placement
  and
  $ juju status --model foundations-maas:lma nagios
  Shows that placement/0 and placement/1 and nagios/0 are all happy and alive. 

  Maybe the problem is that placement is on model foundations-
  maas:openstack and nagios is on model foundations-maas:lma, but this
  difference is not defined in `juju-hostgroup_juju-placement.cfg`.

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