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@marvell
Created May 5, 2015 08:36
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#docker
#!/usr/bin/env bash
set -x
pid=0
# SIGUSR1-handler
my_handler() {
echo "my_handler"
}
# SIGTERM-handler
term_handler() {
if [ $pid -ne 0 ]; then
kill -SIGTERM "$pid"
wait "$pid"
fi
exit 143; # 128 + 15 -- SIGTERM
}
# setup handlers
# on callback, kill the last background process, which is `tail -f /dev/null` and execute the specified handler
trap 'kill ${!}; my_handler' SIGUSR1
trap 'kill ${!}; term_handler' SIGTERM
# run application
node program &
pid="$!"
# wait indefinitely
while true
do
tail -f /dev/null & wait ${!}
done
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