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47 lines
909 B
Bash
Executable file
47 lines
909 B
Bash
Executable file
#!/bin/bash
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# This is a helper script you can use to supervise unicorn, it allows you to perform a live restart
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# by sending it a USR2 signal
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LOCAL_WEB="http://127.0.0.1:3000/"
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function on_exit()
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{
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kill $UNICORN_PID
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echo "exiting"
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}
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function on_reload()
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{
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echo "Reloading unicorn"
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kill -s USR2 $UNICORN_PID
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sleep 10
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curl $LOCAL_WEB &> /dev/null
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NEW_UNICORN_PID=`ps -f --ppid $UNICORN_PID | grep unicorn | grep -v worker | awk '{ print $2 }'`
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kill $UNICORN_PID
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echo "Old pid is: $UNICORN_PID New pid is: $NEW_UNICORN_PID"
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UNICORN_PID=$NEW_UNICORN_PID
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}
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function on_reopenlogs()
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{
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echo "Reopening logs"
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kill -s USR1 $UNICORN_PID
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}
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export UNICORN_SUPERVISOR_PID=$$
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trap on_exit EXIT
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trap on_reload USR2 HUP
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trap on_reopenlogs USR1
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unicorn $@ &
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UNICORN_PID=$!
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echo "supervisor pid: $UNICORN_SUPERVISOR_PID unicorn pid: $UNICORN_PID"
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while kill -0 $UNICORN_PID
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do
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sleep 1
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done
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