cloudamatic/mu

#!/bin/bash
# Copyright:: Copyright (c) 2017 eGlobalTech, Inc., all rights reserved
#
# Licensed under the BSD-3 license (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License in the root of the project or at
#
#     http://egt-labs.com/mu/LICENSE.html
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# mu-momma-cat        The listening server for Mu bootstrap requests.
#
# chkconfig: 2345 55 25
# description: The listening server for Mu bootstrap requests. Uses \
#                             the Ruby 'thin' webserver.
#
# processname: thin
# pidfile: /var/run/mommacat.pid

### BEGIN INIT INFO
# Provides: mu-momma-cat
# Required-Start: $local_fs $network $syslog
# Required-Stop: $local_fs $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: The listening server for Mu bootstrap requests.
# Description:       The listening server for Mu bootstrap requests.
### END INIT INFO

# source function library
. /etc/rc.d/init.d/functions

RETVAL=0
THIN="/usr/local/ruby-current/bin/thin"
MU_RUBY="/usr/local/ruby-current/bin/bundle exec /usr/local/ruby-current/bin/ruby"
LOG_FILE="/var/log/mu-momma-cat.log"
PID_FILE="/var/run/mommacat.pid"
PORT=2260
prog="mu-momma-cat"
lockfile=/var/lock/subsys/mommacat

USER=`whoami`
if [ "$USER" != "root" ];then
    echo "Momma Cat must be run with root privileges."
    exit 1
fi
HOMEDIR="`eval echo ~$USER`"

MU_INSTALLDIR="<%= @installdir %>"
MU_SSL_CERT="<%= @ssl_cert %>"
MU_SSL_KEY="<%= @ssl_key %>"
if [ -z $MU_LIBDIR ];then
    if [ -z $MU_INSTALLDIR ];then
        echo "MU_LIBDIR and MU_INSTALLDIR are unset, I don't know where to find Mu!"
        exit 1
    else
        MU_LIBDIR="$MU_INSTALLDIR/lib"
    fi
fi

mudir="$MU_LIBDIR/modules"

runlevel=$(set -- $(runlevel); eval "echo \$$#" )

start()
{
    cd $mudir || ( echo "Couldn't cd to $mudir" && exit 1 )
    [ -f $mudir/mommacat.ru ] || exit 5

    echo -n $"Starting $prog: "
    ulimit -s unlimited
    $MU_RUBY $THIN --threaded --daemonize --port $PORT --pid $PID_FILE --log $LOG_FILE --ssl --ssl-key-file $MU_SSL_KEY --ssl-cert-file $MU_SSL_CERT --ssl-disable-verify --tag "mu-momma-cat" -R mommacat.ru start && success || failure
    RETVAL=$?
    [ $RETVAL -eq 0 ] && touch $lockfile
    echo
    return $RETVAL
}

stop()
{
    cd $mudir || ( echo "Couldn't cd to $mudir" && exit 1 )
    echo -n $"Stopping $prog: "
    killproc -p $PID_FILE $THIN
    RETVAL=$?
    # if we are in halt or reboot runlevel kill all running sessions
    # so the TCP connections are closed cleanly
    if [ "x$runlevel" = x0 -o "x$runlevel" = x6 ] ; then
        trap '' TERM
        killall $prog 2>/dev/null
        trap TERM
    fi
    [ $RETVAL -eq 0 ] && rm -f $lockfile
    echo
}

restart() {
    stop
    start
}

case "$1" in
    start)
        start
        ;;
    stop)
        stop
        ;;
    restart)
        restart
        ;;
    status)
        if [ ! -f $PID_FILE ];then
            maybe="`ps auxww | egrep \"thin server.*\[$prog\]\" | grep -v grep`"
            if [ ! -z "$maybe" ];then
                echo "$PID_FILE is missing, but I see a process that might be ours"
                echo $maybe
            else
                echo "$prog not running"
            fi
            RETVAL=1
        else
            if [ -z "`cat $PID_FILE`" ];then
                echo "$PID_FILE appears to be present but empty"
                RETVAL=1
            else
                ps uwwp `cat $PID_FILE` | grep "$prog"
                RETVAL=$?
                if [ $RETVAL -ne 0 ];then
                    echo "$prog doesn't seem to be running"
                    if [ -f "$PID_FILE" ];then
                        echo "$PID_FILE may be stale"
                    fi
                else
                    echo "$prog is running"
                    RETVAL=0
                fi
            fi
        fi
        ;;
    *)
        echo $"Usage: $0 {start|stop|restart|status}"
        RETVAL=2
esac
exit $RETVAL