[systemd-devel] Behavior of BindsTo when stopping a service

[Amit Saha]

Hello,

I have a systemd service - drainconnections which I want to to make sure
finishes stopping before systemd starts stopping another service. What I
also want is to if I stop supervisord service, drainconnections should be
stopped first.

It seems like BindsTo is what I need for establishing the coupling between
the two units. The following unit file describes drainconnections:


[Unit]
Description=Drain Connections
After=supervisord.service
BindsTo=supervisord.service

[Service]
Type=oneshot
RemainAfterExit=True
ExecStart=/bin/true
ExecStop=/usr/bin/touch /var/shuttingdown1
ExecStop=/usr/bin/sleep 60
ExecStop=/usr/bin/touch /var/shuttingdown2

[Install]
WantedBy=multi-user.target


In addition, I also needed to add BindsTo=drainconnections to the
supervisord service.

Things work as desired for me considering the above configuration.

Am I on the right track here? Thanks in advance.

Best Wishes,
Amit.
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