add domain to nginx VPS automatically => ./add-domain.sh your-new-domain.com

add-domain.sh

#!/bin/bash

# Info
# ---
# script can run with the domain as a command line input 
# `sudo ./add-domain.sh your-new-domain.com` or without and
# the script will prompt the user for input

#config
web_root='/usr/share/nginx'
config_dir='/etc/nginx'

if [ -z "$1" ]
then   

        #user input
        echo -e "Enter domain name:"
        read DOMAIN
        echo "Creating Nginx domain settings for: $DOMAIN"

        if [ -z "$DOMAIN" ]
        then   
                echo "Domain required"
                exit 1
        fi
fi

if [ -z "$DOMAIN" ]
then
        DOMAIN=$1
fi

(
cat <<EOF
server {
        listen   80; ## listen for ipv4; this line is default and implied
        #listen   [::]:80 default_server ipv6only=on; ## listen for ipv6

        root $web_root/$DOMAIN/;
        index index.php  index.html index.htm;

        # Make site accessible from http://localhost/
        server_name $DOMAIN www.$DOMAIN;

        location ~ /\.ht {
                deny all;
        }
        access_log $web_root/$DOMAIN/log/access_log.txt;
        error_log $web_root/$DOMAIN/log/error_log.txt error;
}
EOF
) >  $config_dir/sites-available/$DOMAIN

echo "Making web directories"
mkdir -p $web_root/"$DOMAIN"
mkdir -p $web_root/"$DOMAIN"/{log,backup} 

(
cat <<EOF

<h1>$DOMAIN is now Online</h1>

EOF
) >  $web_root/"$DOMAIN"/index.html

ln -s $config_dir/sites-available/"$DOMAIN" $config_dir/sites-enabled/"$DOMAIN"
/etc/init.d/nginx reload
echo "Nginx - reload"
chown -R www-data:www-data $web_root/"$DOMAIN"
chmod 755 $web_root/"$DOMAIN"/
echo "Permissions have been set"
echo "$DOMAIN has been setup"