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@guillermo
Created January 15, 2014 08:27
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This is a unix wrapper around the erlang vm.
#!/bin/bash
# This is a unix wrapper around the erlang vm. It provides the following functionality:
#
# * Spawns in foreground
# * Handle SIGHUP and call RELOADFUNC
# * Handle SIGTERM SIGQUIT and SIGINT telling to the vm to quit
# * Dies if the vm dies (for example kernel killing because out of memory)
#
# Forks and improvements are welcome.
#
export APPNAME=my_app
export BASEDIR=`readlink -f $(dirname $0)/..`
export HOME=$BASEDIR
export APPDIR=$BASEDIR/apps/$APPNAME
export ENV=production
export PORT=18080
export SERVICE=my_service_name
export NODE="$SERVICE@`hostname -f`"
export CONFIG_FILE=$APPDIR/priv/$ENV.config
export COOKIE=sbs
export RELOAD="my_module my_func [my_args]"
cd $BASEDIR
reload(){
echo Reloading the app..
erl_call -c $COOKIE -a "$RELOAD" -n ${NODE}
}
trap reload SIGHUP
stop(){
echo Stopping the app
erl_call -c $COOKIE -q -n ${NODE}
}
trap stop SIGQUIT SIGINT SIGTERM
# Maybe you should adapt this to your needs.
exec erl -pa deps/*/ebin apps/*/ebin \
-boot start_sasl \
-sasl sasl_error_logger '{file, "./log/sasl.log"}' \
-s ${APPNAME}_app \
-noinput \
+K true \
+A 4 \
+swt very_low \
-$APPNAME environment $ENV \
-$APPNAME port $PORT \
-config "${CONFIG_FILE}" \
-setcookie $COOKIE \
-name $NODE $* &
pid=$!
sleep 0
echo Controlling the erlang VM $NODE running in $pid from $$. Waiting...
while kill -0 $pid ; do wait $pid ; done
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