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# ==> /etc/systemd/system/unicorn@.service <==
# Since SIGUSR2 upgrades do not work under systemd, this service file
# allows starting two simultaneous services during upgrade time
# (e.g. unicorn@1 unicorn@2) with the intention that they take
# turns running in-between upgrades.  This should allow upgrading
# without downtime.

[Unit]
Description = unicorn Rack application server %i
Wants = unicorn.socket
After = unicorn.socket

[Service]
ExecStart = /usr/bin/unicorn -c /path/to/unicorn.conf.rb /path/to/config.ru
Sockets = unicorn.socket
KillSignal = SIGQUIT
User = nobody
Group = nogroup
ExecReload = /bin/kill -HUP $MAINPID

# This is based on the Unicorn::Configurator#timeout directive,
# adding a few seconds for scheduling differences:
TimeoutStopSec = 62

[Install]
WantedBy = multi-user.target