nagios-charmers team mailing list archive

[Connor Chamberlain <1939068@xxxxxxxxxxxxxxxxxx>]

** Summary changed:

- Parents are missing from host definitions
+ Incorrect parent values when using cross-model relations

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https://bugs.launchpad.net/bugs/1939068

Title:
  Incorrect parent values when using cross-model relations

Status in Nagios Charm:
  New

Bug description:
  Nagios has code that's intended to populate the "parents" value in
  host definitions found in /etc/nagios3/conf.d/charm.cfg through its
  relation to charm-nrpe. However, this code cannot set this value due
  to a discrepancy between how host names and machine IDs are provided
  in relation data between nagios and charm-nrpe.

  A dictionary mapping child machine IDs to their host machine's name
  already exists, but a comparison against keys in this dictionary fails
  because the parent's machine ID is extracted from the child's ID,
  which doesn't exist in the dictionary.  For example, if there is a
  unit deployed at "2/lxd/0" where machine 2's name is "juju-mysql-0",
  this dictionary will look like {"2/lxd/0": "juju-mysql-0"}.  The bug
  here is that a regex expression is used to extract the machine ID of
  "2", which is compared against the dictionary, and that check fails.

  This regular expression needs to be removed and the machine ID as it
  exists in the relation data between nagios and nrpe needs to be used
  as the key.

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