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# Network UPS Tools (NUT) systemd integration
# Copyright (C) 2011-2025 by NUT contributors
# Distributed under the terms of GPLv2+
# See https://networkupstools.org/
# and https://github.com/networkupstools/nut/
[Unit]
Description=Network UPS Tools - optional logging daemon (for status collection and analysis)
# Log UPS values to a file for later collection and analysis
After=local-fs.target network.target nut-server.service
# Note: We do not specify Requires nut-server.service because
# the `upsd` daemon(s) may be running on a different machine
# (connected to the UPSes) than this client program.
# The "Wants" directive would try to start the nut-server but
# would not abort if that attempt fails for whatever reason.
Wants=nut-server.service
# Extending the unit does not require *this* file to be edited, you
# can instead drop in an additional piece of configuration, e.g. to
# require the logging client to only start after external networking
# is configured (usable IP addresses appear in the system) you can
# add a `/etc/systemd/system/nut-logger.service.d/network.conf` with:
# [Unit]
# Requires=network-online.target
# After=network-online.target
PartOf=nut.target
### not enabled by default, but ordered if enabled by user:
Before=nut.target
Documentation=man:upslog(8)
Documentation=@NUT_WEBSITE_BASE@/docs/man/upslog.html
Documentation=man:nut.conf(5)
Documentation=@NUT_WEBSITE_BASE@/docs/man/nut.conf.html
# Should contain UPSLOG_ARGS=... (or a systemd drop-in could provide it)
# with a series of `-m upsname@server,logfile` definitions, where `logfile`
# may be `-` for stdout. See about more variants in man page.
ConditionPathExists=@CONFPATH@/upslog.conf
[Service]
EnvironmentFile=-@CONFPATH@/nut.conf
EnvironmentFile=@CONFPATH@/upslog.conf
SyslogIdentifier=%N
ExecStartPre=-@SYSTEMD_TMPFILES_PROGRAM@ --create @systemdtmpfilesdir@/nut-common-tmpfiles.conf
ExecStartPre=/bin/test -n "${UPSLOG_ARGS}"
ExecStart=@BINDIR@/upslog @SYSTEMD_DAEMON_ARGS_UPSLOG@ $UPSLOG_ARGS
# NOTE: SIGHUP is supported to re-open the log file,
# which is the default systemd ReloadSignal (only
# sent by systemd 253 and newer)
ExecReload=/bin/kill -HUP $MAINPID
PIDFile=@PIDPATH@/upslog.pid
# With this program, the PID file always exists and "kill -TERM" in particular
# can be used from command-line or some legacy scripts, it causes a clean and
# intentional exit of the daemon (some other signals are also supported).
# Then systemd should not revive it - hence restart it only on failure:
Restart=on-failure
Type=@SYSTEMD_DAEMON_TYPE_UPSLOG@
@SYSTEMD_DAEMON_WATCHDOG_UPSLOG@
@SYSTEMD_DAEMON_NOTIFYACCESS_UPSLOG@
[Install]
WantedBy=nut.target
Alias=upslog.service
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