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Systemd AMP
===========
Monitor the state of the systemd system and service (unit) manager.
How to read the stats
---------------------
active: Number of active units. This is usually a fairly basic way to tell if the
unit has started successfully or not.
loaded: Number of loaded units (unit's configuration has been parsed by systemd).
failed: Number of units with an active failed status.
Source reference: https://www.digitalocean.com/community/tutorials/how-to-use-systemctl-to-manage-systemd-services-and-units
Configuration file example
--------------------------
[amp_systemd]
# Systemd
enable=true
regex=\/usr\/lib\/systemd\/systemd
refresh=60
one_line=true
systemctl_cmd=/usr/bin/systemctl --plain
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