Created
July 14, 2012 20:31
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LNMP based Wordpress install script modified from LowEndBox's script
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#!/bin/bash | |
function check_install { | |
if [ -z "`which "$1" 2>/dev/null`" ] | |
then | |
executable=$1 | |
shift | |
while [ -n "$1" ] | |
do | |
DEBIAN_FRONTEND=noninteractive apt-get -q -y install "$1" | |
print_info "$1 installed for $executable" | |
shift | |
done | |
else | |
print_warn "$2 already installed" | |
fi | |
} | |
function check_remove { | |
if [ -n "`which "$1" 2>/dev/null`" ] | |
then | |
DEBIAN_FRONTEND=noninteractive apt-get -q -y remove --purge "$2" | |
print_info "$2 removed" | |
else | |
print_warn "$2 is not installed" | |
fi | |
} | |
function check_sanity { | |
# Do some sanity checking. | |
if [ $(/usr/bin/id -u) != "0" ] | |
then | |
die 'Must be run by root user' | |
fi | |
if [ ! -f /etc/debian_version ] | |
then | |
die "Distribution is not supported" | |
fi | |
} | |
function die { | |
echo "ERROR: $1" > /dev/null 1>&2 | |
exit 1 | |
} | |
function get_domain_name() { | |
# Getting rid of the lowest part. | |
domain=${1%.*} | |
lowest=`expr "$domain" : '.*\.\([a-z][a-z]*\)'` | |
case "$lowest" in | |
com|net|org|gov|edu|co) | |
domain=${domain%.*} | |
;; | |
esac | |
lowest=`expr "$domain" : '.*\.\([a-z][a-z]*\)'` | |
[ -z "$lowest" ] && echo "$domain" || echo "$lowest" | |
} | |
function get_password() { | |
# Check whether our local salt is present. | |
SALT=/var/lib/radom_salt | |
if [ ! -f "$SALT" ] | |
then | |
head -c 512 /dev/urandom > "$SALT" | |
chmod 400 "$SALT" | |
fi | |
password=`(cat "$SALT"; echo $1) | md5sum | base64` | |
echo ${password:0:13} | |
} | |
function install_dash { | |
check_install dash dash | |
rm -f /bin/sh | |
ln -s dash /bin/sh | |
} | |
function install_dropbear { | |
check_install dropbear dropbear | |
check_install /usr/sbin/xinetd xinetd | |
# Disable SSH | |
touch /etc/ssh/sshd_not_to_be_run | |
invoke-rc.d ssh stop | |
# Enable dropbear to start. We are going to use xinetd as it is just | |
# easier to configure and might be used for other things. | |
cat > /etc/xinetd.d/dropbear <<END | |
service ssh | |
{ | |
socket_type = stream | |
only_from = 0.0.0.0 | |
wait = no | |
user = root | |
protocol = tcp | |
server = /usr/sbin/dropbear | |
server_args = -i | |
disable = no | |
} | |
END | |
invoke-rc.d xinetd restart | |
} | |
function install_exim4 { | |
check_install mail exim4 | |
if [ -f /etc/exim4/update-exim4.conf.conf ] | |
then | |
sed -i \ | |
"s/dc_eximconfig_configtype='local'/dc_eximconfig_configtype='internet'/" \ | |
/etc/exim4/update-exim4.conf.conf | |
invoke-rc.d exim4 restart | |
fi | |
} | |
function install_mysql { | |
# Install the MySQL packages | |
check_install mysqld mysql-server | |
check_install mysql mysql-client | |
# Install a low-end copy of the my.cnf to disable InnoDB, and then delete | |
# all the related files. | |
invoke-rc.d mysql stop | |
rm -f /var/lib/mysql/ib* | |
cat > /etc/mysql/conf.d/lowendbox.cnf <<END | |
[mysqld] | |
key_buffer = 8M | |
query_cache_size = 0 | |
skip-innodb | |
END | |
invoke-rc.d mysql start | |
# Generating a new password for the root user. | |
passwd=`get_password root@mysql` | |
mysqladmin password "$passwd" | |
cat > ~/.my.cnf <<END | |
[client] | |
user = root | |
password = $passwd | |
END | |
chmod 600 ~/.my.cnf | |
} | |
function install_nginx { | |
check_install nginx nginx | |
# Need to increase the bucket size for Debian 5. | |
cat > /etc/nginx/conf.d/lowendbox.conf <<END | |
server_names_hash_bucket_size 64; | |
END | |
invoke-rc.d nginx restart | |
} | |
function install_php { | |
check_install php-cgi php5-cgi php5-cli php5-mysql | |
cat > /etc/init.d/php-cgi <<END | |
#!/bin/bash | |
### BEGIN INIT INFO | |
# Provides: php-cgi | |
# Required-Start: networking | |
# Required-Stop: networking | |
# Default-Start: 2 3 4 5 | |
# Default-Stop: 0 1 6 | |
# Short-Description: Start the PHP FastCGI processes web server. | |
### END INIT INFO | |
PATH=/sbin:/bin:/usr/sbin:/usr/bin | |
NAME="php-cgi" | |
DESC="php-cgi" | |
PIDFILE="/var/run/www/php.pid" | |
FCGIPROGRAM="/usr/bin/php-cgi" | |
FCGISOCKET="/var/run/www/php.sock" | |
FCGIUSER="www-data" | |
FCGIGROUP="www-data" | |
if [ -e /etc/default/php-cgi ] | |
then | |
source /etc/default/php-cgi | |
fi | |
[ -z "\$PHP_FCGI_CHILDREN" ] && PHP_FCGI_CHILDREN=1 | |
[ -z "\$PHP_FCGI_MAX_REQUESTS" ] && PHP_FCGI_MAX_REQUESTS=5000 | |
ALLOWED_ENV="PATH USER PHP_FCGI_CHILDREN PHP_FCGI_MAX_REQUESTS FCGI_WEB_SERVER_ADDRS" | |
set -e | |
. /lib/lsb/init-functions | |
case "\$1" in | |
start) | |
unset E | |
for i in \${ALLOWED_ENV}; do | |
E="\${E} \${i}=\${!i}" | |
done | |
log_daemon_msg "Starting \$DESC" \$NAME | |
env - \${E} start-stop-daemon --start -x \$FCGIPROGRAM -p \$PIDFILE \\ | |
-c \$FCGIUSER:\$FCGIGROUP -b -m -- -b \$FCGISOCKET | |
log_end_msg 0 | |
;; | |
stop) | |
log_daemon_msg "Stopping \$DESC" \$NAME | |
if start-stop-daemon --quiet --stop --oknodo --retry 30 \\ | |
--pidfile \$PIDFILE --exec \$FCGIPROGRAM | |
then | |
rm -f \$PIDFILE | |
log_end_msg 0 | |
else | |
log_end_msg 1 | |
fi | |
;; | |
restart|force-reload) | |
\$0 stop | |
sleep 1 | |
\$0 start | |
;; | |
*) | |
echo "Usage: \$0 {start|stop|restart|force-reload}" >&2 | |
exit 1 | |
;; | |
esac | |
exit 0 | |
END | |
chmod 755 /etc/init.d/php-cgi | |
mkdir -p /var/run/www | |
chown www-data:www-data /var/run/www | |
cat > /etc/nginx/fastcgi_php <<END | |
location ~ \.php$ { | |
include /etc/nginx/fastcgi_params; | |
fastcgi_index index.php; | |
fastcgi_param SCRIPT_FILENAME \$document_root\$fastcgi_script_name; | |
if (-f \$request_filename) { | |
fastcgi_pass unix:/var/run/www/php.sock; | |
} | |
} | |
END | |
update-rc.d php-cgi defaults | |
invoke-rc.d php-cgi start | |
} | |
function install_syslogd { | |
# We just need a simple vanilla syslogd. Also there is no need to log to | |
# so many files (waste of fd). Just dump them into | |
# /var/log/(cron/mail/messages) | |
check_install /usr/sbin/syslogd inetutils-syslogd | |
invoke-rc.d inetutils-syslogd stop | |
for file in /var/log/*.log /var/log/mail.* /var/log/debug /var/log/syslog | |
do | |
[ -f "$file" ] && rm -f "$file" | |
done | |
for dir in fsck news | |
do | |
[ -d "/var/log/$dir" ] && rm -rf "/var/log/$dir" | |
done | |
cat > /etc/syslog.conf <<END | |
*.*;mail.none;cron.none -/var/log/messages | |
cron.* -/var/log/cron | |
mail.* -/var/log/mail | |
END | |
[ -d /etc/logrotate.d ] || mkdir -p /etc/logrotate.d | |
cat > /etc/logrotate.d/inetutils-syslogd <<END | |
/var/log/cron | |
/var/log/mail | |
/var/log/messages { | |
rotate 4 | |
weekly | |
missingok | |
notifempty | |
compress | |
sharedscripts | |
postrotate | |
/etc/init.d/inetutils-syslogd reload >/dev/null | |
endscript | |
} | |
END | |
invoke-rc.d inetutils-syslogd start | |
} | |
function install_wordpress { | |
check_install wget wget | |
if [ -z "$1" ] | |
then | |
die "Usage: `basename $0` wordpress <hostname>" | |
fi | |
# Downloading the WordPress' latest and greatest distribution. | |
mkdir /tmp/wordpress.$$ | |
wget -O - http://wordpress.org/latest.tar.gz | \ | |
tar zxf - -C /tmp/wordpress.$$ | |
mv /tmp/wordpress.$$/wordpress/* "/var/www/$1" | |
rm -rf /tmp/wordpress.$$ | |
chown www-data:root -R "/var/www/$1" | |
# Setting up the MySQL database | |
dbname=`echo $1 | tr . _` | |
userid=`get_domain_name $1` | |
# MySQL userid cannot be more than 15 characters long | |
userid="${userid:0:15}" | |
passwd=`get_password "$userid@mysql"` | |
cp "/var/www/$1/wp-config-sample.php" "/var/www/$1/wp-config.php" | |
sed -i "s/database_name_here/$dbname/; s/username_here/$userid/; s/password_here/$passwd/" \ | |
"/var/www/$1/wp-config.php" | |
mysqladmin create "$dbname" | |
echo "GRANT ALL PRIVILEGES ON \`$dbname\`.* TO \`$userid\`@localhost IDENTIFIED BY '$passwd';" | \ | |
mysql | |
# Setting up Nginx mapping | |
cat > "/etc/nginx/sites-enabled/$1.conf" <<END | |
server { | |
server_name $1; | |
root /var/www/$1; | |
include /etc/nginx/fastcgi_php; | |
location / { | |
index index.php; | |
if (!-e \$request_filename) { | |
rewrite ^(.*)$ /index.php last; | |
} | |
} | |
} | |
END | |
invoke-rc.d nginx reload | |
} | |
function print_info { | |
echo -n -e '\e[1;36m' | |
echo -n $1 | |
echo -e '\e[0m' | |
} | |
function print_warn { | |
echo -n -e '\e[1;33m' | |
echo -n $1 | |
echo -e '\e[0m' | |
} | |
function remove_unneeded { | |
# Some Debian have portmap installed. We don't need that. | |
check_remove /sbin/portmap portmap | |
# Remove rsyslogd, which allocates ~30MB privvmpages on an OpenVZ system, | |
# which might make some low-end VPS inoperatable. We will do this even | |
# before running apt-get update. | |
check_remove /usr/sbin/rsyslogd rsyslog | |
# Other packages that seem to be pretty common in standard OpenVZ | |
# templates. | |
check_remove /usr/sbin/apache2 'apache2*' | |
check_remove /usr/sbin/named bind9 | |
check_remove /usr/sbin/smbd 'samba*' | |
check_remove /usr/sbin/nscd nscd | |
# Need to stop sendmail as removing the package does not seem to stop it. | |
if [ -f /usr/lib/sm.bin/smtpd ] | |
then | |
invoke-rc.d sendmail stop | |
check_remove /usr/lib/sm.bin/smtpd 'sendmail*' | |
fi | |
} | |
function update_upgrade { | |
# Run through the apt-get update/upgrade first. This should be done before | |
# we try to install any package | |
apt-get -q -y update | |
apt-get -q -y upgrade | |
} | |
######################################################################## | |
# START OF PROGRAM | |
######################################################################## | |
export PATH=/bin:/usr/bin:/sbin:/usr/sbin | |
check_sanity | |
case "$1" in | |
exim4) | |
install_exim4 | |
;; | |
mysql) | |
install_mysql | |
;; | |
nginx) | |
install_nginx | |
;; | |
php) | |
install_php | |
;; | |
system) | |
remove_unneeded | |
update_upgrade | |
install_dash | |
install_syslogd | |
install_dropbear | |
;; | |
wordpress) | |
install_wordpress $2 | |
;; | |
*) | |
echo 'Usage:' `basename $0` '[option]' | |
echo 'Available option:' | |
for option in system exim4 mysql nginx php wordpress | |
do | |
echo ' -' $option | |
done | |
;; | |
esac |
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