On Fri, 26 Aug 2022, Jim Klimov via Nut-upsuser wrote:
I'd expect upsmon service to only begin stopping when something like
multi-user target has finished stopping, but not sure quickly if packaging
covers that, and/or if VMs are part of that target. Maybe a "drop-in" file for
e.g. nut-client would help you define custom end-of-life dependencies. Systemd
has tons of keywords and nuance interactions to choose from.
I was disappointed when I saw that the systemd service units did not allow for
adequate logging, so I use a custom version
# nut-delayed-ups-shutdown.service
[Unit]
Description=Initiate delayed UPS shutdown
Before=umount.target
DefaultDependencies=no
[Service]
Type=oneshot
ExecStart=/usr/bin/logger -t nut-delayed-ups-shutdown "upsdrvctl shutting down
UPS"
ExecStart=/usr/sbin/upsdrvctl shutdown # Debian
[Install]
WantedBy=final.target
Note the line Before... to ensure that the logging goes to disk, and the first
ExecStart... to get a trace of the action.
Maybe there are other options which do this more elegantly.
Roger
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