SysV Init Script for ExoEdge

edged

#!/bin/bash

# SysV init script for edged

# Installation:
#  1. cp edged /etc/init.d/
#  2. chmod 755 /etc/init.d/edged
#  3. chown root:root /etc/init.d/edged
#  4. update-rc.d edged defaults 90 90

NAME="edged"
LOCK="/var/lock/$NAME"
ENABLED="yes"

run_dir=/var/run/edged
conf_dir=/var/config/edged
conf_file=$conf_dir/edged.ini
config_io_file=$conf_dir/edged.json

edged=/usr/bin/edged
edged_log=/var/log/edged.log
edged_pidfile=$run_dir/$NAME.pid

do_start() {
    # create run directory
    mkdir -p $run_dir/1
    rm -rf $run_dir/1/*

    echo -n "Starting $NAME: "
    # start edged
     start-stop-daemon \
        --start \
        --background \
        --make-pidfile \
        --pidfile $edged_pidfile \
        --startas /bin/bash \
        -- \
        -c "exec $edged \
        --ini-file $conf_file \
        --config-io-file $config_io_file \
        --local-strategy \
        go \
        >> $edged_log 2>&1"
    sleep 2

    echo "OK"
}

do_stop() {
    echo -n "Stopping $NAME: "
    start-stop-daemon \
        --stop \
        --quiet \
        --oknodo \
        --pidfile $edged_pidfile \
        --retry TERM/60/KILL/5

    echo "OK"
}

if [ "$ENABLED" != "yes" ]; then
    echo "$NAME: disabled in /etc/default"
    exit
fi

force_stop() {
    do_stop
    rm -fr $LOCK
}

function try_lock() {
    if mkdir $LOCK; then
        trap "rm -fr $LOCK" EXIT
    else
        echo "ExoEdge Daemon lock not acquired, resource in use."
        exit 1
    fi
}

case "$1" in
    "start")
            try_lock
            do_start
        ;;
    "stop")
            force_stop
        ;;
    "restart")
            ## Stop the service and regardless of whether it was
            ## running or not, start it again.
            try_lock
            do_stop
            do_start
        ;;
    *)
            ## If no parameters are given, print which are avaiable.
            echo "Usage: $0 {start|stop|restart}"
            exit 1
    ;;
esac