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LVS-NAT负载均衡PHP应用（Wordpress、Discuz）

程序员文章站 2023-12-04 15:06:52
1 实验拓扑 2 需求 RS 01和RS 02对外提供WEB服务。 RS 01搭建LAMP，PHP通过http模块方式提供。 RS 02搭建LAMP，PHP通过fpm方式提供。 RS 01和RS 02之间的关系。 RS 01对外提供NFS服务，作为两个LAMP环境的共享存储，负责存储用户上传的资源， ......

1 实验拓扑

LVS-NAT负载均衡PHP应用（Wordpress、Discuz）

2 需求

  • rs-01和rs-02对外提供web服务。
  • rs-01搭建lamp，php通过http模块方式提供。
  • rs-02搭建lamp，php通过fpm方式提供。
  • rs-01和rs-02之间的关系。
    • rs-01对外提供nfs服务，作为两个lamp环境的共享存储，负责存储用户上传的资源，例如：图片、文档等。
    • rs-02对外提供mariadb服务，作为两台lamp环境的共享数据库，负责存储用户的帖子、文字等。
  • 对外提供的域名为www.example.com
    建议现将下面的文章全部浏览完成，再做实验。

3 软件版本

本次使用root用户进行安装，软件全部在每台设备的/root/目录下
apr-1.6.3.tar.bz2
apr-util-1.6.1.tar.bz2
discuz_x3.1_sc_utf8.zip
httpd-2.4.6.tar.bz2
mariadb-5.5.46-linux-x86_64.tar.gz
phpmyadmin-4.0.10.20-all-languages.zip
wordpress-4.7.4-zh_cn.tar.gz
php-5.3.27.tar.gz

4 vs配置

一共部署了3个软件，wordpress、discuz、phpmyadmin；
wordpress和discuz工作在rr模式下也可以正常的访问网页不会出现session超时的现象，可以访问速度非常慢；如果将模式改为sh或者删除一个rs主机，速度就快起来了；
phpmyadmin工作在rr模式下会提示session超时；

sysctl -w net.ipv4.ip_forward=1
yum -y install ipvsadm
ipvsadm -a -t 10.207.51.113:80 -s rr
ipvsadm -a -t 10.207.51.113:80 -r 10.0.0.101:80 -m
ipvsadm -a -t 10.207.51.113:80 -r 10.0.0.102:80 -m

5 rs_01部署nfs

因为nfs是共享存储，rs-01和rs-02都需要使用，所以提前部署。

yum install -y rpcbind nfs-utils &&\
echo '/nfsdata/wordpress    10.0.0.0/24(rw,sync,root_squash,all_squash,anonuid=48,anongid=48)' >/etc/exports &&\
echo '/nfsdata/discuz    10.0.0.0/24(rw,sync,root_squash,all_squash,anonuid=48,anongid=48)' >>/etc/exports &&\
mkdir -p /nfsdata/wordpress &&\
mkdir -p /nfsdata/discuz &&\
systemctl start rpcbind &&\
systemctl start nfs &&\
systemctl enable rpcbind &&\
systemctl enable nfs

[root@rs_01 ~]# showmount -e
export list for rs_01:
/nfsdata/discuz    10.0.0.0/24
/nfsdata/wordpress 10.0.0.0/24

注意：要确保rs-01和rs-02上的apache用户的uid和gid都是48

6 rs_02部署mariadb

因为mariadb是共享数据库，rs-01和rs-02都需要使用，所以提前部署。

tar -xf mariadb-5.5.46-linux-x86_64.tar.gz -c /usr/local/ &&\
cd /usr/local/ &&\
useradd -r -m -s /sbin/nologin mysql &&\
ln -sv mariadb-5.5.46-linux-x86_64 mysql &&\
chown -r mysql.mysql  mysql/ &&\
mkdir /databases &&\
cd mysql/ &&\
\cp support-files/my-huge.cnf /etc/my.cnf &&\
sed -i "/\[mysqld\]/a datadir = /databases\ninnodb_file_per_table = on\nskip_name_resolve = on" /etc/my.cnf &&\
./scripts/mysql_install_db --user=mysql --datadir=/databases --basedir=/usr/local/mysql &&\
touch /var/log/mysqld.log &&\
chown mysql:mysql /var/log/mysqld.log &&\
echo 'path=$path:/usr/local/mysql/bin' >  /etc/profile.d/mariadb.sh &&\
source /etc/profile.d/mariadb.sh &&\
echo 'manpath_map /usr/local/apache2/bin    /usr/local/apache2/man' >>/etc/man_db.conf && \
manpath &&\
ln -sv /usr/local/mysql/include /usr/include/mysql &&\
echo '/usr/local/mysql/lib/' > /etc/ld.so.conf.d/mariadb.conf &&\
ldconfig &&\
\cp support-files/mysql.server /etc/init.d/mysqld &&\
chkconfig --add mysqld &&\
chkconfig --list mysqld &&\
sleep 3 &&\
service mysqld start

----------------------------------------------------------------------------------------------

mysql -h127.0.0.1 -uroot
create database wordpress;
create database discuz;
set password for 'root'@'127.0.0.1' =  password('123123');
set password for 'root'@'localhost' =  password('123123');
create user 'wordpress'@'10.0.0.%' identified by '123123';
create user 'wordpress'@'127.0.0.1' identified by '123123';
grant all on wordpress.* to 'wordpress'@'127.0.0.1';
grant all on wordpress.* to 'wordpress'@'10.0.0.%';
create user 'discuz'@'10.0.0.%' identified by '123123';
create user 'discuz'@'127.0.0.1' identified by '123123';
grant all on discuz.* to 'discuz'@'127.0.0.1';
grant all on discuz.* to 'discuz'@'10.0.0.%';
exit

7 rs_01

7.1 部署http

vim /etc/sysconfig/httpd
# configuration file for the httpd service.

#
# the default processing model (mpm) is the process-based
# 'prefork' model.  a thread-based model, 'worker', is also
# available, but does not work with some modules (such as php).
# the service must be stopped before changing this variable.
#
httpd=/usr/local/apache2/bin/httpd

#
# to pass additional options (for instance, -d definitions) to the
# httpd binary at startup, set options here.
#
#options=

#
# by default, the httpd process is started in the c locale; to
# change the locale in which the server runs, the httpd_lang
# variable can be set.
#
#httpd_lang=c

#
# by default, the httpd process will create the file
# /usr/local/apache2/logs/httpd.pid in which it records its process
# identification number when it starts.  if an alternate location is
# specified in httpd.conf (via the pidfile directive), the new
# location needs to be reported in the pidfile.
#
#pidfile=/usr/local/apache2/logs/httpd.pid


------------------------------------------------------------------------------------


vim /etc/rc.d/init.d/httpd
#!/bin/bash
#
# httpd        startup script for the apache http server
#
# chkconfig: - 85 15
# description: the apache http server is an efficient and extensible  \
#           server implementing the current http standards.
# processname: httpd
# config: /etc/httpd/httpd.conf
# config: /etc/sysconfig/httpd
# pidfile: /usr/local/apache2/logs/httpd.pid
#
### begin init info
# provides: httpd
# required-start: $local_fs $remote_fs $network $named
# required-stop: $local_fs $remote_fs $network
# should-start: distcache
# short-description: start and stop apache http server
# description: the apache http server is an extensible server
#  implementing the current http standards.
### end init info

# source function library.
. /etc/rc.d/init.d/functions

if [ -f /etc/sysconfig/httpd ]; then
        . /etc/sysconfig/httpd
fi

# start httpd in the c locale by default.
httpd_lang=${httpd_lang-"c"}

# this will prevent initlog from swallowing up a pass-phrase prompt if
# mod_ssl needs a pass-phrase from the user.
initlog_args=""

# set httpd=/usr/sbin/httpd.worker in /etc/sysconfig/httpd to use a server
# with the thread-based "worker" mpm; be warned that some modules may not
# work correctly with a thread-based mpm; notably php will refuse to start.

# path to the apachectl script, server binary, and short-form for messages.
apachectl=/usr/local/apache2/bin/apachectl
httpd=${httpd-/usr/local/apache2/bin/httpd}
prog=httpd
pidfile=${pidfile-/usr/local/apache2/logs/httpd.pid}
lockfile=${lockfile-/var/lock/subsys/httpd}
retval=0
stop_timeout=${stop_timeout-10}

# the semantics of these two functions differ from the way apachectl does
# things -- attempting to start while running is a failure, and shutdown
# when not running is also a failure.  so we just do it the way init scripts
# are expected to behave here.
start() {
        echo -n $"starting $prog: "
        lang=$httpd_lang daemon --pidfile=${pidfile} $httpd $options
        retval=$?
        echo
        [ $retval = 0 ] && touch ${lockfile}
        return $retval
}

# when stopping httpd, a delay (of default 10 second) is required
# before sigkilling the httpd parent; this gives enough time for the
# httpd parent to sigkill any errant children.
stop() {
    status -p ${pidfile} $httpd > /dev/null
    if [[ $? = 0 ]]; then
        echo -n $"stopping $prog: "
        killproc -p ${pidfile} -d ${stop_timeout} $httpd
    else
        echo -n $"stopping $prog: "
        success
    fi
    retval=$?
    echo
    [ $retval = 0 ] && rm -f ${lockfile} ${pidfile}
}

reload() {
    echo -n $"reloading $prog: "
    if ! lang=$httpd_lang $httpd $options -t >&/dev/null; then
        retval=6
        echo $"not reloading due to configuration syntax error"
        failure $"not reloading $httpd due to configuration syntax error"
    else
        # force lsb behaviour from killproc
        lsb=1 killproc -p ${pidfile} $httpd -hup
        retval=$?
        if [ $retval -eq 7 ]; then
            failure $"httpd shutdown"
        fi
    fi
    echo
}

# see how we were called.
case "$1" in
  start)
    start
    ;;
  stop)
    stop
    ;;
  status)
        status -p ${pidfile} $httpd
    retval=$?
    ;;
  restart)
    stop
    start
    ;;
  condrestart|try-restart)
    if status -p ${pidfile} $httpd >&/dev/null; then
        stop
        start
    fi
    ;;
  force-reload|reload)
        reload
    ;;
  graceful|help|configtest|fullstatus)
    $apachectl $@
    retval=$?
    ;;
  *)
    echo $"usage: $prog {start|stop|restart|condrestart|try-restart|force-reload|reload|status|fullstatus|graceful|help|configtest}"
    retval=2
esac

exit $retval


---------------------------------------------------------------------------


chmod +x /etc/init.d/httpd &&\
yum groupinstall -y "development tools" && \
yum install -y expat-devel openssl-devel pcre-devel && \
tar -xf apr-1.6.3.tar.bz2 && \
tar -xf apr-util-1.6.1.tar.bz2 && \
tar -xf httpd-2.4.6.tar.bz2 && \
cd apr-1.6.3/ && \
./configure -prefix=/usr/local/apr-1.6.3 && \
make && make install && \
cd ../apr-util-1.6.1/ && \
./configure -prefix=/usr/local/apr-unil-1.6.1 --with-apr=/usr/local/apr-1.6.3 && \
make && make install && \
cd ../httpd-2.4.6/ && \
cp -r ../apr-1.6.3 ./srclib/apr && \
cp -r ../apr-util-1.6.1 ./srclib/apr-util && \
./configure  --prefix=/usr/local/apache2 \
--with-apr=/usr/local/apr-1.6.3 \
--with-apr-util=/usr/local/apr-unil-1.6.1 \
--with-included-apr \
--sysconfdir=/etc/httpd \
--enable-so \
--enable-mpms-shared=all \
--enable-mods-shared=all \
--with-mpm=prefork && \
make && \
make install && \
chmod 755 /etc/init.d/httpd && \
chkconfig --add httpd && \
chkconfig --level 3 httpd on && \
echo "export path=$path:/usr/local/apache2/bin" > /etc/profile.d/apache2.sh && \
source /etc/profile.d/apache2.sh && \
sed -i -e "/\/opt\/sbin/a manpath_map /usr/local/apache2/bin    /usr/local/apache2/man" /etc/man_db.conf && \
manpath && \
ln -sv /usr/local/apache2/include /usr/include/httpd && \
echo "/usr/local/apache2/lib" > /etc/ld.so.conf.d/httpd.conf && \
ldconfig && \
sed -i "s#user daemon#user apache#g" /etc/httpd/httpd.conf && \
sed -i "s#group daemon#group apache#g" /etc/httpd/httpd.conf && \
sed -ri "s#^\#(servername www.example.com:80)#\1#g" /etc/httpd/httpd.conf &&\
groupadd -g 48 apache && \
useradd -u 48 -g 48 -m -s /sbin/nologin apache && \
sleep 3 && \
service httpd start

7.2 php

yum install -y zlib-devel libxml2-devel libjpeg-devel  libjpeg-turbo-devel libiconv-devel freetype-devel libpng-devel gd-devel libcurl-devel libxslt-devel libxslt-devel openssl-devel libmcrypt-devel  libtool-ltdl-devel gcc gcc-c++ && \
tar -xf php-5.3.27.tar.gz && \
cd php-5.3.27 && \
useradd -r -m -s /sbin/nologin php && \
./configure --prefix=/usr/local/php \
--sysconfdir=/etc \
--with-apxs2=/usr/local/apache2/bin/apxs \
--with-mysql=mysqlnd \
--with-pdo-mysql=mysqlnd \
--with-iconv-dir=/usr/local/libiconv \
--with-libxml-dir=/usr \
--with-freetype-dir \
--with-jpeg-dir \
--with-png-dir \
--with-zlib \
--enable-xml \
--disable-rpath \
--enable-bcmath \
--enable-shmop \
--enable-sysvsem \
--enable-inline-optimization \
--with-curl \
--enable-mbregex \
--enable-mbstring \
--with-mcrypt \
--with-openssl \
--with-gd \
--enable-gd-native-ttf \
--with-openssl \
--with-mhash \
--enable-pcntl \
--enable-sockets \
--with-xmlrpc \
--enable-soap \
--enable-short-tags \
--enable-static \
--with-xsl \
--enable-ftp \
--with-config-file-path=/etc \
--with-config-file-scan-dir=/etc/php.d && \
make && \
make install && \
echo 'path=$path:/usr/local/php/bin' >  /etc/profile.d/php.sh && \
source /etc/profile.d/php.sh && \
sed -i -e "/\/opt\/sbin/a manpath_map     /usr/local/php/bin      /usr/local/php/man" /etc/man_db.conf && \
manpath && \
ln -sv /usr/local/php/include  /usr/include/php && \
cp php.ini-production /etc/php.ini && \
sed -i -r 's#^;(date.timezone =)#\1 asia/shanghai#g' /etc/php.ini && \
chown -r php:php /etc/php.ini && \
chown -r php:php /usr/local/php && \
sed -i 's#directoryindex index.html#directoryindex index.html index.php#g' /etc/httpd/httpd.conf && \
sed -i "/<ifmodule mime_module>/a \ \ \ \ addtype application/x-httpd-php .php\n    addtype applicaiton/x-httpd-php-source .phps" /etc/httpd/httpd.conf && \
sed -i "s#/usr/local/apache2/htdocs#/data/www#g" /etc/httpd/httpd.conf &&\
sleep 3 &&\
service httpd restart

7.3 wordpress

mkdir -p /data/www/  &&\
tar -xf wordpress-4.7.4-zh_cn.tar.gz -c /data/www/  &&\
cp -r /data/www/wordpress/wp-content/* /nfsdata/wordpress/  &&\
mv /data/www/wordpress/wp-content /data/www/wordpress/wp-content.bak  &&\
mkdir /data/www/wordpress/wp-content  &&\
chown -r apache: /data/www/wordpress/  &&\
mount --bind /nfsdata/wordpress /data/www/wordpress/wp-content  &&\
cd /data/www/  &&\
cp wordpress/wp-config-sample.php  wordpress/wp-config.php  &&\
sed -i 's#database_name_here#wordpress#g' wordpress/wp-config.php  &&\
sed -i 's#username_here#wordpress#g' wordpress/wp-config.php  &&\
sed -i 's#password_here#123123#g' wordpress/wp-config.php  &&\
sed -i 's#localhost#10.0.0.102#g' wordpress/wp-config.php  &&\
chown -r apache:apache /data/www/wordpress/  &&\
service httpd restart

在浏览器中输入下面的链接安装wordpress
http://10.0.0.101/wordpress/wp-admin/setup-config.php

在本次环境中，使用上面这个链接安装是不对的，要使用最后绑定给vip的域名（www.example.com）来安装wordpress，不要直接使用rs-01的ip来安装，具体原因见下文，此处假定使用了上面的安装方式；
正确安装方式：将www.example.com临时解析为10.0.0.101；然后执行安装http://www.example.com/wordpress/wp-admin/setup-config.php

8 rs-02

8.1 http

vim /etc/sysconfig/httpd
# configuration file for the httpd service.

#
# the default processing model (mpm) is the process-based
# 'prefork' model.  a thread-based model, 'worker', is also
# available, but does not work with some modules (such as php).
# the service must be stopped before changing this variable.
#
httpd=/usr/local/apache2/bin/httpd

#
# to pass additional options (for instance, -d definitions) to the
# httpd binary at startup, set options here.
#
#options=

#
# by default, the httpd process is started in the c locale; to
# change the locale in which the server runs, the httpd_lang
# variable can be set.
#
#httpd_lang=c

#
# by default, the httpd process will create the file
# /usr/local/apache2/logs/httpd.pid in which it records its process
# identification number when it starts.  if an alternate location is
# specified in httpd.conf (via the pidfile directive), the new
# location needs to be reported in the pidfile.
#
#pidfile=/usr/local/apache2/logs/httpd.pid


------------------------------------------------------------------------------


vim /etc/rc.d/init.d/httpd
#!/bin/bash
#
# httpd        startup script for the apache http server
#
# chkconfig: - 85 15
# description: the apache http server is an efficient and extensible  \
#           server implementing the current http standards.
# processname: httpd
# config: /etc/httpd/httpd.conf
# config: /etc/sysconfig/httpd
# pidfile: /usr/local/apache2/logs/httpd.pid
#
### begin init info
# provides: httpd
# required-start: $local_fs $remote_fs $network $named
# required-stop: $local_fs $remote_fs $network
# should-start: distcache
# short-description: start and stop apache http server
# description: the apache http server is an extensible server
#  implementing the current http standards.
### end init info

# source function library.
. /etc/rc.d/init.d/functions

if [ -f /etc/sysconfig/httpd ]; then
        . /etc/sysconfig/httpd
fi

# start httpd in the c locale by default.
httpd_lang=${httpd_lang-"c"}

# this will prevent initlog from swallowing up a pass-phrase prompt if
# mod_ssl needs a pass-phrase from the user.
initlog_args=""

# set httpd=/usr/sbin/httpd.worker in /etc/sysconfig/httpd to use a server
# with the thread-based "worker" mpm; be warned that some modules may not
# work correctly with a thread-based mpm; notably php will refuse to start.

# path to the apachectl script, server binary, and short-form for messages.
apachectl=/usr/local/apache2/bin/apachectl
httpd=${httpd-/usr/local/apache2/bin/httpd}
prog=httpd
pidfile=${pidfile-/usr/local/apache2/logs/httpd.pid}
lockfile=${lockfile-/var/lock/subsys/httpd}
retval=0
stop_timeout=${stop_timeout-10}

# the semantics of these two functions differ from the way apachectl does
# things -- attempting to start while running is a failure, and shutdown
# when not running is also a failure.  so we just do it the way init scripts
# are expected to behave here.
start() {
        echo -n $"starting $prog: "
        lang=$httpd_lang daemon --pidfile=${pidfile} $httpd $options
        retval=$?
        echo
        [ $retval = 0 ] && touch ${lockfile}
        return $retval
}

# when stopping httpd, a delay (of default 10 second) is required
# before sigkilling the httpd parent; this gives enough time for the
# httpd parent to sigkill any errant children.
stop() {
    status -p ${pidfile} $httpd > /dev/null
    if [[ $? = 0 ]]; then
        echo -n $"stopping $prog: "
        killproc -p ${pidfile} -d ${stop_timeout} $httpd
    else
        echo -n $"stopping $prog: "
        success
    fi
    retval=$?
    echo
    [ $retval = 0 ] && rm -f ${lockfile} ${pidfile}
}

reload() {
    echo -n $"reloading $prog: "
    if ! lang=$httpd_lang $httpd $options -t >&/dev/null; then
        retval=6
        echo $"not reloading due to configuration syntax error"
        failure $"not reloading $httpd due to configuration syntax error"
    else
        # force lsb behaviour from killproc
        lsb=1 killproc -p ${pidfile} $httpd -hup
        retval=$?
        if [ $retval -eq 7 ]; then
            failure $"httpd shutdown"
        fi
    fi
    echo
}

# see how we were called.
case "$1" in
  start)
    start
    ;;
  stop)
    stop
    ;;
  status)
        status -p ${pidfile} $httpd
    retval=$?
    ;;
  restart)
    stop
    start
    ;;
  condrestart|try-restart)
    if status -p ${pidfile} $httpd >&/dev/null; then
        stop
        start
    fi
    ;;
  force-reload|reload)
        reload
    ;;
  graceful|help|configtest|fullstatus)
    $apachectl $@
    retval=$?
    ;;
  *)
    echo $"usage: $prog {start|stop|restart|condrestart|try-restart|force-reload|reload|status|fullstatus|graceful|help|configtest}"
    retval=2
esac

exit $retval


------------------------------------------------------------------------------------


chmod +x /etc/init.d/httpd &&\
yum groupinstall -y "development tools" && \
yum install -y expat-devel openssl-devel pcre-devel && \
tar -xf apr-1.6.3.tar.bz2 && \
tar -xf apr-util-1.6.1.tar.bz2 && \
tar -xf httpd-2.4.6.tar.bz2 && \
cd apr-1.6.3/ && \
./configure -prefix=/usr/local/apr-1.6.3 && \
make && make install && \
cd ../apr-util-1.6.1/ && \
./configure -prefix=/usr/local/apr-unil-1.6.1 --with-apr=/usr/local/apr-1.6.3 && \
make && make install && \
cd ../httpd-2.4.6/ && \
cp -r ../apr-1.6.3 ./srclib/apr && \
cp -r ../apr-util-1.6.1 ./srclib/apr-util && \
./configure  --prefix=/usr/local/apache2 \
--with-apr=/usr/local/apr-1.6.3 \
--with-apr-util=/usr/local/apr-unil-1.6.1 \
--with-included-apr \
--sysconfdir=/etc/httpd \
--enable-so \
--enable-mpms-shared=all \
--enable-mods-shared=all \
--with-mpm=prefork && \
make && \
make install && \
chmod 755 /etc/init.d/httpd && \
chkconfig --add httpd && \
chkconfig --level 3 httpd on && \
echo "export path=$path:/usr/local/apache2/bin" > /etc/profile.d/apache2.sh && \
source /etc/profile.d/apache2.sh && \
sed -i -e "/\/opt\/sbin/a manpath_map /usr/local/apache2/bin    /usr/local/apache2/man" /etc/man_db.conf && \
manpath && \
ln -sv /usr/local/apache2/include /usr/include/httpd && \
echo "/usr/local/apache2/lib" > /etc/ld.so.conf.d/httpd.conf && \
ldconfig && \
sed -i "s#user daemon#user apache#g" /etc/httpd/httpd.conf && \
sed -i "s#group daemon#group apache#g" /etc/httpd/httpd.conf && \
sed -ri "s#^\#(servername www.example.com:80)#\1#g" /etc/httpd/httpd.conf &&\
groupadd -g 48 apache && \
useradd -u 48 -g 48 -m -s /sbin/nologin apache && \
sleep 3 && \
service httpd start

8.2 php

yum install -y zlib-devel libxml2-devel libjpeg-devel  libjpeg-turbo-devel libiconv-devel freetype-devel libpng-devel gd-devel  libcurl-devel libxslt-devel libxslt-devel openssl-devel libmcrypt-devel  libtool-ltdl-devel gcc gcc-c++ &&\
useradd -r -m -s /sbin/nologin php &&\
tar -xf php-5.3.27.tar.gz &&\
cd php-5.3.27 &&\
./configure \
--prefix=/usr/local/php \
--sysconfdir=/etc/ \
--with-mysql=/usr/local/mysql \
--with-pdo-mysql=mysqlnd \
--with-iconv-dir=/usr/local/libiconv \
--with-freetype-dir \
--with-jpeg-dir \
--with-png-dir \
--with-zlib \
--with-libxml-dir=/usr \
--enable-xml \
--disable-rpath \
--enable-bcmath \
--enable-shmop \
--enable-sysvsem \
--enable-inline-optimization \
--with-curl \
--enable-mbregex \
--enable-fpm \
--enable-mbstring \
--with-mcrypt \
--with-openssl \
--with-gd \
--enable-gd-native-ttf \
--with-openssl \
--with-mhash \
--enable-pcntl \
--enable-sockets \
--with-xmlrpc \
--enable-soap \
--enable-short-tags \
--enable-static \
--with-xsl \
--with-fpm-user=php \
--with-fpm-group=php \
--enable-ftp \
--with-config-file-path=/etc \
--with-config-file-scan-dir=/etc/php.d &&\
make &&\
make install &&\
echo 'path=$path:/usr/local/php/bin' >  /etc/profile.d/php.sh &&\
source /etc/profile.d/php.sh &&\
sed -i "/\/opt\/sbin/a manpath_map     /usr/local/php/bin      /usr/local/php/man" /etc/man_db.conf &&\
manpath &&\
ln -sv /usr/local/php/include /usr/include/php &&\
cp sapi/fpm/init.d.php-fpm /etc/init.d/php-fpm &&\
chmod +x /etc/init.d/php-fpm &&\
chkconfig --add php-fpm &&\
cp php.ini-production /etc/php.ini &&\
sed -i -r 's#^(pdo_mysql.default_socket=)#\1/usr/local/mysql/mysql.sock#g' /etc/php.ini && \
sed -i -r 's#^;(date.timezone =)#\1 asia/shanghai#g' /etc/php.ini &&\
mv /etc/php-fpm.conf.default /etc/php-fpm.conf &&\
chown php:php /etc/php.ini &&\
chown -r php:php /usr/local/php &&\
sed -i "s#/usr/local/apache2/htdocs#/data/www#g" /etc/httpd/httpd.conf &&\
sed -i 's#directoryindex index.html#directoryindex index.html index.php#g' /etc/httpd/httpd.conf &&\
sed -i 's#^\#loadmodule proxy_module modules/mod_proxy.so#loadmodule proxy_module modules/mod_proxy.so#g' /etc/httpd/httpd.conf &&\
sed -i 's#^\#loadmodule proxy_fcgi_module modules/mod_proxy_fcgi.so#loadmodule proxy_fcgi_module modules/mod_proxy_fcgi.so#g' /etc/httpd/httpd.conf &&\
sed -i "/<ifmodule mime_module>/a \ \ \ \ addtype application/x-httpd-php .php\n    addtype applicaiton/x-httpd-php-source .phps" /etc/httpd/httpd.conf &&\
echo -e 'proxyrequests off\nproxypassmatch ^/(.*\.php)$ fcgi://127.0.0.1:9000/data/www/$1' >> /etc/httpd/httpd.conf &&\
sleep 3 &&\
service php-fpm start
service httpd restart

8.3 wordpress

其实将rs-01的wordpress目录复制过来就行，然后为/data/wordpress/wp-content并挂在共享存储，最后更改一下属主属组为apache，
如果挂在不上需要查看网络原因，可以先安装nfs-utils，然后使用showmount -e 10.0.0.101命令查看可挂载的目录

yum install -y rpcbind &&\
systemctl start rpcbind &&\
systemctl enable rpcbind &&\
mkdir -p /data/www/  &&\
tar -xf wordpress-4.7.4-zh_cn.tar.gz -c /data/www/  &&\
mv /data/www/wordpress/wp-content /data/www/wordpress/wp-content.bak  &&\
mkdir /data/www/wordpress/wp-content  &&\
chown -r apache: /data/www/wordpress/  &&\
mount -t nfs -o bg,timeo=300,soft,retrans=50,rsize=180000,wsize=180000,rw,noexec,sync 10.0.0.101:/nfsdata/wordpress /data/www/wordpress/wp-content/  &&\
cd /data/www/  &&\
cp wordpress/wp-config-sample.php  wordpress/wp-config.php  &&\
sed -i 's#database_name_here#wordpress#g' wordpress/wp-config.php  &&\
sed -i 's#username_here#wordpress#g' wordpress/wp-config.php  &&\
sed -i 's#password_here#123123#g' wordpress/wp-config.php  &&\
sed -i 's#localhost#10.0.0.102#g' wordpress/wp-config.php  &&\
chown -r apache:apache /data/www/wordpress/

9 故障解决

部署完rs-01的lamp环境之后，挂载了共享存储作为wordpress的用户上传文件的目录，并且安装了wordpress，然后测试登录，发布文章，发现没问题。
部署完rs-02的lamp环境之后，挂载了共享存储作为wordpress的用户上传文件的目录，并且安装了wordpress（和rs-01使用的是一个mariadb，rs-02不用再次创建表，支持读取rs-01创建的表），测试登录，发现总是直接跳转到rs-01上（在浏览器里输入10.0.0.102，只要一点击登录或者浏览文章，url就跳转到了10.0.0.101），而且通过抓包发现了下面这种情况，而且通过查看数据库，发现wordpress数据库中很多表的字段里面都写了rs-01的地址。所以无法实现最初的需求；

下面是解决问题过程中，测试先安装rs-02，然后安装rs-01时抓的报文，这里作为示例

LVS-NAT负载均衡PHP应用（Wordpress、Discuz）

最后解决的方法

上一次部署的时候，我是输入http://10.0.0.101/wordpress/wp-admin/setup-config.php进行安装的。

这回我是输入http://www.example.com/wordpress/wp-admin/setup-config.php进行安装的。
此时www.example.com 对应rs-01的地址10.0.0.101。
部署完成后，发布文档，上传文件。没有问题

将www.example.com对应rs-02的地址10.0.0.102。
查看之前发布的文章，查看之前上传的文件。发布新的文章，都没有问题。

最后配置lvs-nat。将www.example.com对应lvs的vip地址，10.207.51.113，调度方式选择成rr（没有选择sh）。
访问www.example.com登录wordpress。发布文章，查看之前的文章，上传的文件。没有问题。
并且session没有问题（这个不清楚为什么，选择的是rr，竟然没有出问题，但是访问速度非常的慢；一旦将模式改为sh或者删除一台主机就访问速度就快了；）

此时收的到的报文
LVS-NAT负载均衡PHP应用（Wordpress、Discuz）

通过查看wordpress创建的表，发现在很多表的字段中，wordpress程序会绑定安装的时候使用的url，之前绑定了成了http://10.0.0.101/wordpress所以会出现跳转的情况

LVS-NAT负载均衡PHP应用（Wordpress、Discuz）

10 phpmyadmin

配置比较简单，参考我之前的文章即可；
之后又部署了phpmyadmin之后，使用lvs-nat模式，调度方式使用rr，发现每点击几次个页面，或者刷新几次，就会出现出现session过期的情况，更换调度方式为sh后解决问题；
因为connection: keep-alive的原因，所以不是刷新一次就切换一台服务器，如果connection: closed，就会变成刷新一次换一个服务器了；

LVS-NAT负载均衡PHP应用（Wordpress、Discuz）

11 discuz

配置比较简单，此处略
最后安装了discuz，这个软件就不存在wordpres绑定url的情况；而且这个软件也是在调度模式为rr的时候没有问题，担仍然是很慢，换成sh模式就快了；

LVS-NAT负载均衡PHP应用（Wordpress、Discuz）

LVS-NAT负载均衡PHP应用（Wordpress、Discuz）

LVS-NAT负载均衡PHP应用（Wordpress、Discuz）

LVS-NAT负载均衡PHP应用（Wordpress、Discuz）

LVS-NAT负载均衡PHP应用（Wordpress、Discuz）

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