Salt minion init script

salt-minion.sh

#!/bin/sh
#
# Salt minion
###################################

# LSB header

### BEGIN INIT INFO
# Provides: salt-minion
# Required-Start: network
# Short-Description: salt minion control daemon
# Description: This is a daemon that controls the salt minions
### END INIT INFO

# chkconfig header

# chkconfig: 345 99 99
# description:  This is a daemon that controls the salt mininons
#
# processname: /usr/bin/salt-minion

SERVICE=salt-minion
PROCESS="/usr/bin/$SERVICE"
PYTHON="/usr/bin/python"
CONFIG_ARGS="-c /etc/salt/minion"

# Sanity checks.
[ -x $PROCESS ] || exit 0

DEBIAN_VERSION=/etc/debian_version
SUSE_RELEASE=/etc/SuSE-release
# Source function library.
if [ -f $DEBIAN_VERSION ]; then
   break
elif [ -f $SUSE_RELEASE -a -r /etc/rc.status ]; then
    . /etc/rc.status
else
    . /etc/rc.d/init.d/functions
fi

RETVAL=0

start() {
    echo -n "Starting salt-minion daemon: "
    if [ -f $SUSE_RELEASE ]; then
        startproc -f -p /var/run/$SERVICE.pid $PROCESS -d -l quiet $CONFIG_ARGS
        rc_status -v
    elif [ -e $DEBIAN_VERSION ]; then
        if ps aux | grep "$PYTHON[ ]$PROCESS" 2>&1 > /dev/null; then
            echo -n "already started, lock file found"
            RETVAL=1
        elif $PYTHON $PROCESS -d -l quiet $CONFIG_ARGS; then
            echo -n "OK"
            RETVAL=0
        fi
    else
        daemon --check $SERVICE $PROCESS -d -l quiet $CONFIG_ARGS
    fi
    RETVAL=$?
    echo
    return $RETVAL
}

stop() {
    echo -n "Stopping salt-minion daemon: "
    if [ -f $SUSE_RELEASE ]; then
        killproc -TERM $PROCESS
        rc_status -v
    elif [ -f $DEBIAN_VERSION ]; then
        # Added this since Debian's start-stop-daemon doesn't support spawned processes
        if ps aux | grep "$PYTHON[ ]$PROCESS" 2>&1 > /dev/null; then
            ps aux | grep "$PYTHON[ ]$PROCESS" | awk '{ print $2 }' | xargs kill
            echo -n "OK"
            RETVAL=0
        else
            echo -n "Daemon is not started"
            RETVAL=1
        fi
    else
        killproc $PROCESS
    fi
    RETVAL=$?
    echo
}

restart() {
    stop
    sleep 1
    start
}

# See how we were called.
case "$1" in
    start|stop|restart)
        $1
        ;;
    status)
        if [ -f $SUSE_RELEASE ]; then
            echo -n "Checking for service salt-minion "
            checkproc $PROCESS
            rc_status -v
        elif [ -f $DEBIAN_VERSION ]; then
            if ps aux | grep "$PYTHON[ ]$PROCESS" 2>&1 > /dev/null; then
                RETVAL=0
                echo "salt-minion is running."
            else
                RETVAL=1
                echo "salt-minion is stopped."
            fi
        else
            status $PROCESS
            RETVAL=$?
        fi
        ;;
    condrestart)
        [ -f $LOCKFILE ] && restart || :
        ;;
    reload)
        echo "can't reload configuration, you have to restart it"
        RETVAL=$?
        ;;
    *)
        echo $"Usage: $0 {start|stop|status|restart|condrestart|reload}"
        exit 1
        ;;
esac
exit $RETVAL