vhost creation script

vhost.sh

#!/usr/bin/env bash

# Run this as sudo!
# I move this file to /usr/local/bin/vhost and run command 'vhost' from anywhere, using sudo.

#
#   Show Usage, Output to STDERR
#
function show_usage {
cat <<- _EOF_

Create a new vhost

    -r    RootFolder - i.e. public
    -h    Help - Show this menu.
    -s    ServerName - i.e. example.com or sub.example.com
    -a    ServerAlias - i.e. *.example.com or another domain altogether
    -u    UserName - i.e. expweb
_EOF_
exit 1
}

#
#   Output vHost skeleton, fill with userinput
#   To be outputted into new file
#
function create_vhost {
cat <<- _EOF_
<VirtualHost *:8080>
  ServerName $ServerName
  $ServerAlias
  ServerAdmin serveradmin@$ServerName
  DocumentRoot $DocumentRoot

  <IfModule mod_fcgid.c>
    SuexecUserGroup $User $User
    <Directory $DocumentRoot>
      Options +ExecCGI
      AllowOverride All
      AddHandler fcgid-script .php
      FCGIWrapper $WrapperDir/php-fcgi-starter .php
      Order allow,deny
      Allow from all
    </Directory>
  </IfModule>

  ErrorLog /var/www/$User/log/error_$ReverseServerName.log
  CustomLog /var/www/$User/log/access_$ReverseServerName.log combined
  ServerSignature Off

</VirtualHost>
_EOF_
}

#
#   Output vHost skeleton, fill with userinput
#   To be outputted into new file
#
function create_wrapper {
cat <<- _EOF_
#!/bin/sh
PHPRC=/etc/php5/cgi/
export PHPRC
export PHP_FCGI_MAX_REQUESTS=5000
export PHP_FCGI_CHILDREN=8
exec /usr/lib/cgi-bin/php
_EOF_
}

# Sanity Check - are there two arguments with 2 values?
if [ "$#" -lt 4 ]; then
    show_usage
fi

# Parse flags
while getopts "d:r:s:a:u:p:h" OPTION; do
    case $OPTION in
        h)
            show_usage
            ;;
        r)
            RootFolder=$OPTARG
            ;;
        s)
            ServerName=$OPTARG
            ;;
        a)
            Alias=$OPTARG
            ;;
        u)
            User=$OPTARG
            ;;
        p)
            Password=$OPTARG
            ;;
        *)
            show_usage
            ;;
    esac
done

# Create random password
if [ "$Password" == "" ]; then
    Password=`cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 12 | head -n 1`
fi

# Create reverse servername
ReverseServerName=`echo $ServerName|awk -F. '{s="";for (i=NF;i>1;i--) s=s sprintf("%s.",$i);$0=s $1}1'`

# If root folder is set:
if [ "$RootFolder" != "" ]; then
    RootFolder=$RootFolder
else
    RootFolder="public"
fi

# # Create document root
DocumentRoot="/var/www/$User/$ReverseServerName/$RootFolder"
WrapperDir="/var/www/$User/wrapper"
LogDir="/var/www/$User/log"

# Check if username exist
if id -u $User >/dev/null 2>&1; then
    echo "User $User already exists"
else
    echo "Adding user/group $User with password $Password"
    groupadd $User
    useradd -d /var/www/$User -m -g $User $User
    echo "$User:$Password" | chpasswd
fi
echo "Creating $DocumentRoot" && mkdir -p $DocumentRoot
echo "Creating $WrapperDir" && mkdir -p $WrapperDir
echo "Creating $LogDir" && mkdir -p $LogDir
chown -R $User:$User /var/www/$User

# If alias is set:
if [ "$Alias" != "" ]; then
    ServerAlias="ServerAlias "$Alias
else
    ServerAlias="ServerAlias www."$ServerName
fi

if [ -f "/etc/apache2/sites-available/$ReverseServerName.conf" ]; then
    echo 'Vhost already exists. Aborting...'
    show_usage
else
    # Creating vhost
    echo "Creating vhost config /etc/apache2/sites-available/$ReverseServerName.conf"
    create_vhost > /etc/apache2/sites-available/${ReverseServerName}.conf

    # Creating wrapper
    echo "Creating wrapper $WrapperDir/php-fcgi-starter"
    create_wrapper > ${WrapperDir}/php-fcgi-starter
    chown -R ${User}:${User} ${WrapperDir}/php-fcgi-starter
    chmod 755 ${WrapperDir}/php-fcgi-starter

    # Enable Site
    echo "Enabling vhost"
    a2ensite ${ReverseServerName}

    echo "Reloading apache"
    service apache2 reload
fi