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|
#!/bin/bash
RUNNER_SCRIPT_DIR=$(cd ${0%/*} && pwd)
RUNNER_BASE_DIR=${RUNNER_SCRIPT_DIR%/*}
RUNNER_ETC_DIR=$RUNNER_BASE_DIR/etc
RUNNER_LOG_DIR=$RUNNER_BASE_DIR/log
PIPE_DIR=/tmp/$RUNNER_BASE_DIR/
RUNNER_USER=
# Make sure this script is running as the appropriate user
if [ ! -z "$RUNNER_USER" ] && [ `whoami` != "$RUNNER_USER" ]; then
exec sudo -u $RUNNER_USER -i $0 $@
fi
# Make sure CWD is set to runner base dir
cd $RUNNER_BASE_DIR
# Make sure log directory exists
mkdir -p $RUNNER_LOG_DIR
# Extract the target node name from node.args
NAME_ARG=`grep -e '-[s]*name' $RUNNER_ETC_DIR/vm.args`
if [ -z "$NAME_ARG" ]; then
echo "vm.args needs to have either -name or -sname parameter."
exit 1
fi
# Extract the target cookie
COOKIE_ARG=`grep -e '-setcookie' $RUNNER_ETC_DIR/vm.args`
if [ -z "$COOKIE_ARG" ]; then
echo "vm.args needs to have a -setcookie parameter."
exit 1
fi
# Identify the script name
SCRIPT=`basename $0`
# Parse out release and erts info
START_ERL=`cat $RUNNER_BASE_DIR/releases/start_erl.data`
ERTS_VSN=${START_ERL% *}
APP_VSN=${START_ERL#* }
# Add ERTS bin dir to our path
ERTS_PATH=$RUNNER_BASE_DIR/erts-$ERTS_VSN/bin
# Setup command to control the node
NODETOOL="$ERTS_PATH/escript $ERTS_PATH/nodetool $NAME_ARG $COOKIE_ARG"
# Check the first argument for instructions
case "$1" in
start)
# Make sure there is not already a node running
RES=`$NODETOOL ping`
if [ "$RES" == "pong" ]; then
echo "Node is already running!"
exit 1
fi
export HEART_COMMAND="$RUNNER_BASE_DIR/bin/$SCRIPT start"
mkdir -p $PIPE_DIR
# Note the trailing slash on $PIPE_DIR/
$ERTS_PATH/run_erl -daemon $PIPE_DIR/ $RUNNER_LOG_DIR "exec $RUNNER_BASE_DIR/bin/$SCRIPT console" 2>&1
;;
stop)
# Wait for the node to completely stop...
PID=`ps -ef|grep "$RUNNER_BASE_DIR/.*/[b]eam.smp|awk '{print $2}'"`
$NODETOOL stop
while `kill -0 $PID 2>/dev/null`;
do
sleep 1
done
;;
restart)
## Restart the VM without exiting the process
$NODETOOL restart
;;
reboot)
## Restart the VM completely (uses heart to restart it)
$NODETOOL reboot
;;
ping)
## See if the VM is alive
$NODETOOL ping
;;
attach)
# Make sure a node IS running
RES=`$NODETOOL ping`
if [ "$RES" != "pong" ]; then
echo "Node is not running!"
exit 1
fi
shift
$ERTS_PATH/to_erl $PIPE_DIR
;;
console)
# Setup beam-required vars
ROOTDIR=$RUNNER_BASE_DIR
BINDIR=$ROOTDIR/erts-$ERTS_VSN/bin
EMU=beam
PROGNAME=`echo $0 | sed 's/.*\\///'`
CMD="$BINDIR/erlexec -boot $RUNNER_BASE_DIR/releases/$APP_VSN/$SCRIPT -embedded -config $RUNNER_ETC_DIR/app.config -args_file $RUNNER_ETC_DIR/vm.args -- ${1+"$@"}"
export EMU
export ROOTDIR
export BINDIR
export PROGNAME
# Dump environment info for logging purposes
echo "Exec: $CMD"
echo "Root: $ROOTDIR"
# Log the startup
logger -t "$SCRIPT[$$]" "Starting up"
# Start the VM
exec $CMD
;;
*)
echo "Usage: $SCRIPT {start|stop|restart|reboot|ping|console|attach}"
exit 1
;;
esac
exit 0
|
