Let's Chatのインストールスクリプト（CentOS 6.x w/ bash）

install-letschat.sh

#!/bin/bash

set -e
set -u

# must replace with your own configuration
FQDN='letschat.your.domain'

yum -y install httpd git

cat <<'_EOF_' > /etc/yum.repos.d/mongodb.repo
[mongodb]
name=MongoDB Repository
baseurl=http://downloads-distro.mongodb.org/repo/redhat/os/x86_64/
gpgcheck=0
enabled=1
_EOF_
yum -y install mongodb-org
cat <<'_EOF_' >> /etc/mongod.conf
journal=true
smallfiles=true
_EOF_
chkconfig mongod on
service mongod start

yum -y install epel-release
yum -y --enablerepo=epel install nodejs npm
yum -y install icu libicu-devel

npm install -g forever

[ ! -d /opt ] && mkdir /opt

cd /opt && git clone https://github.com/sdelements/lets-chat.git
cd lets-chat
npm update
npm install

cp settings.yml{.sample,}
sed -i -e '/^  *host: .*localhost.*$/d' settings.yml
echo -e '\ni18n:\n  locale: ja\n' >> settings.yml

npm run migrate

cat <<_EOF_ > /etc/httpd/conf.d/vhosts.conf
NameVirtualHost *:80
<VirtualHost *:80>
    ServerName $FQDN
    ProxyPass / http://$FQDN:5000/
    ProxyPassReverse / http://$FQDN:5000/
</VirtualHost>
_EOF_
/bin/rm /etc/httpd/conf.d/welcome.conf
chkconfig httpd on
service httpd restart

cat <<'_EOF_' > /etc/init.d/letschat
#! /bin/sh
### BEGIN INIT INFO
# Provides:          Lets chat
# Required-Start:    $network $syslog
# Required-Stop:     $network $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Chatting Platform
# Description:       Lets chat: Chatting Platform
### END INIT INFO

PATH=/sbin:/usr/sbin:/bin:/usr/bin

APP_NAME='letschat'

DIR_VAR=/var/run/forever/letschat
DIR_APP_ROOT=/opt/lets-chat
FILE_LOG=/var/log/letschat
FILE_EXEC=app.js

export  FOREVER_ROOT="$DIR_VAR"
export  NODE_ENV=production

[[ ! -d "$DIR_VAR" ]] && mkdir -p "$DIR_VAR"

do_start() {
    cd "$DIR_APP_ROOT" && \
    forever start \
        -l "$FILE_LOG" -e "$FILE_LOG" --append \
        -p "$DIR_APP_ROOT" \
        "$FILE_EXEC" \
    |& logger
    return $?
}

do_stop() {
    cd "$DIR_APP_ROOT" && \
        forever stopall \
    |& logger
    return $?
}

do_reload() {
    cd "$DIR_APP_ROOT" && \
        forever restart 0 \
    |& logger
    return $?
}

case "$1" in
start)
    do_start
    if [[ $? -ne 0 ]]; then
        echo "[ $APP_NAME ] ERROR: Cannot start" >&2
        exit 1
    fi
    echo "[ $APP_NAME ] Started" >&2
    ;;
stop)
    do_stop
    if [[ $? -ne 0 ]]; then
        echo "[ $APP_NAME ] ERROR: Cannot stop" >&2
        exit 1
    fi
    echo "[ $APP_NAME ] Stopped" >&2
    ;;
status)
    cd "$DIR_APP_ROOT" && \
    forever  list
    ;;
restart|reload)
    do_reload
    if [[ $? -ne 0 ]]; then
        echo "[ $APP_NAME ] ERROR: Cannot restart" >&2
        exit 1
    fi
    echo "[ $APP_NAME ] Restarted" >&2
    ;;
*)
    echo "Usage: $SCRIPTNAME {start|stop|status|restart}" >&2
    exit 3
    ;;
esac
:
_EOF_
chmod +x /etc/init.d/letschat
chkconfig letschat on
service letschat start

iptables -I INPUT -p tcp --dport http -j ACCEPT
service iptables save && service iptables restart