nrpe check reports "juju-db.service is not running" for juju 2.9.32

[Przemyslaw Lal]

NRPE check reports "juju-db.service is not running" for juju controller 2.9.32 running on focal.

juju-db in this version runs as a snap:

ubuntu@juju-controller-1:~$ snap list | grep juju-db
juju-db 4.4.14 127 4.4/stable juju-qa -

ubuntu@juju-controller-1:~$ ps -ef | grep juju-db
root 6219 1 8 Jul26 ? 02:21:28 /snap/juju-db/127/bin/mongod --config /var/snap/juju-db/common/juju-db.config

Instead of monitoring juju-db.service, nrpe should monitor either juju-db process or snap.juju-db.daemon.service:

ubuntu@juju-controller-1:~$ systemctl status snap.juju-db.daemon.service
● snap.juju-db.daemon.service - Service for snap application juju-db.daemon
     Loaded: loaded (/etc/systemd/system/snap.juju-db.daemon.service; enabled; vendor preset: enabled)
    Drop-In: /etc/systemd/system/snap.juju-db.daemon.service.d
             └─overrides.conf
     Active: active (running) since Tue 2022-07-26 09:58:11 UTC; 1 day 2h ago