nginx负载均衡读写分离
nginx负载均衡读写分离
环境说明
| 主机名 | IP地址 | 服务 | 系统 |
|---|---|---|---|
| nginx | 192.168.34.130 | nginx | centos8 |
| lnmp | 192.168.34.131 | lnmp | centos8 |
| http | 192.168.34.140 | http | centos8 |
nginx主机：源码部署nginx
[root@nginx ~]# systemctl stop firewalld
[root@nginx ~]# getenforce
Disabled
[root@nginx ~]# useradd -r -M -s /sbin/nologin nginx
[root@nginx ~]# yum -y install pcre-devel openssl openssl-devel make gd-devel gcc gcc-c++
[root@nginx ~]# mkdir -p /var/log/nginx
[root@nginx ~]# chown -R nginx.nginx /var/log/nginx/
[root@nginx ~]# cd /usr/src/
[root@nginx src]# wget https://nginx.org/download/nginx-1.22.0.tar.gz
[root@nginx src]# tar xf nginx-1.22.0.tar.gz -C /usr/local/
[root@nginx src]# cd /usr/local/nginx-1.22.0/
[root@nginx nginx-1.22.0]# ./configure --prefix=/usr/local/nginx --user=nginx --group=nginx --with-debug --with-http_ssl_module --with-http_realip_module --with-http_image_filter_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_stub_status_module --http-log-path=/var/log/nginx/access.log --error-log-path=/var/log/nginx/error.log
[root@nginx nginx-1.22.0]# make && make install
[root@nginx nginx-1.22.0]# echo 'export PATH=/usr/local/nginx/sbin:$PATH' > /etc/profile.d/nginx.sh
[root@nginx nginx-1.22.0]# source /etc/profile.d/nginx.sh
[root@nginx nginx-1.22.0]# nginx
[root@nginx nginx-1.22.0]# nginx -s stop
[root@nginx nginx-1.22.0]# vim /usr/lib/systemd/system/nginx.service
[root@nginx nginx-1.22.]# cat /usr/lib/systemd/system/nginx.service
[Unit]
Description=nginx server daemon
After=network.target
[Service]
Type=forking
ExecStart=/usr/local/nginx/sbin/nginx
ExecStop=/usr/local/nginx/sbin/nginx -s stop
ExecReload=/bin/kill -HUP \$MAINPID
[Install]
WantedBy=multi-user.target
[root@nginx nginx-1.22.0]# systemctl daemon-reload
[root@nginx nginx-1.22.0]# systemctl enable --now nginx
修改配置文件实现动静分离
[root@nginx html]# vim /usr/local/nginx/conf/nginx.conf
upstream php.com {
server 192.168.34.131:80;
}
upstream http.com {
server 192.168.34.131:81;
server 192.168.34.140:80;
}
server {
listen 80;
server_name localhost;
#charset koi8-r;
#access_log logs/host.access.log main;
location / {
proxy_pass http://http.com;
}
location ~ \.php$ {
proxy_pass http://php.com;
}
}
server {
listen 81;
server_name localhost;
location / {
index index.html;
}
}
lnmp主机
源码安装nginx
[root@lnmp ~]# systemctl stop firewalld
[root@lnmp ~]# cat /etc/sysconfig/selinux
SELINUX=disabled
[root@lnmp ~]# yum -y install pcre-devel openssl openssl-devel make gd-devel gcc gcc-c++ vim wget
[root@lnmp yum.repos.d]# yum -y install pcre-devel openssl openssl-devel make gd-devel gcc gcc-c++ vim wget
[root@lnmp src]# wget https://nginx.org/download/nginx-1.22.0.tar.gz
[root@lnmp src]# tar xf nginx-1.22.0.tar.gz -C /usr/local/
[root@lnmp src]# cd /usr/local/nginx-1.22.0/
[root@lnmp nginx-1.22.0]# ./configure --prefix=/usr/local/nginx --user=nginx --group=nginx --with-debug --with-http_ssl_module --with-http_realip_module --with-http_image_filter_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_stub_status_module --http-log-path=/var/log/nginx/access.log --error-log-path=/var/log/nginx/error.log
[root@lnmp nginx-1.22.0]# make && make install
[root@lnmp nginx-1.22.0]# echo 'export PATH=/usr/local/nginx/sbin:$PATH' > /etc/profile.d/nginx.sh
[root@lnmp nginx-1.22.0]# source /etc/profile.d/nginx.sh
[root@lnmp nginx-1.22.0]# nginx
[root@lnmp nginx-1.22.0]# nginx -s stop
[root@lnmp nginx-1.22.0]# vim /usr/lib/systemd/system/nginx.service
[root@lnmp nginx-1.22.0]# cat /usr/lib/systemd/system/nginx.service
[Unit]
Description=nginx server daemon
After=network.target
[Service]
Type=forking
ExecStart=/usr/local/nginx/sbin/nginx
ExecStop=/usr/local/nginx/sbin/nginx -s stop
ExecReload=/bin/kill -HUP \$MAINPID
[Install]
WantedBy=multi-user.target
[root@lnmp nginx-1.22.0]# systemctl daemon-reload
[root@lnmp nginx-1.22.0]# systemctl enable --now nginx
安装mysql
[root@lnmp ~]# yum -y install ncurses-devel ncurses-compat-libs openssl-devel openssl cmake mariadb-devel
[root@lnmp ~]# groupadd -r -g 306 mysql
[root@lnmp ~]# useradd -rMs /sbin/nologin -g 306 -u 306 mysql
[root@lnmp ~]# cd /usr/src/
[root@lnmp src]# ls
debug mysql-8.0.28-linux-glibc2.12-x86_64.tar.xz php-8.1.11.tar.gz
kernels nginx-1.22.0.tar.gz
[root@lnmp src]# tar xf mysql-8.0.28-linux-glibc2.12-x86_64.tar.xz -C /usr/local/
[root@lnmp src]# cd /usr/local/
[root@lnmp local]# ln -s mysql-8.0.28-linux-glibc2.12-x86_64/ mysql
[root@lnmp local]# echo 'export PATH=/usr/local/mysql/bin:$PATH' > /etc/profile.d/mysql.sh
[root@lnmp local]# source /etc/profile.d/mysql.sh
[root@lnmp local]# ln -s /usr/local/mysql/include /usr/include/mysql
[root@lnmp local]# vim /etc/man_db.conf //添加以下内容
MANDATORY_MANPATH /usr/local/mysql/man
[root@lnmp local]# mkdir /opt/data
[root@lnmp local]# chown -R mysql.mysql /opt/data/
[root@lnmp local]# /usr/local/mysql/bin/mysqld --initialize --user=mysql --datadir=/opt/data/
[root@lnmp local]# cat /etc/my.cnf
[mysqld]
basedir=/usr/local/mysql
datadir=/opt/data
socket=/tmp/mysql.sock
port=3306
pid-file=/opt/data/mysql.pid
user=mysql
skip-name-resolve
[root@lnmp local]# cd /usr/local/mysql
[root@lnmp mysql]# cd support-files/
[root@lnmp support-files]# cp mysql.server /etc/init.d/mysqld
[root@lnmp support-files]# vim /etc/init.d/mysqld
basedir=/usr/local/mysqld
datadir=/opt/data
[root@lnmp support-files]# chmod +x /etc/init.d/mysqld
[root@lnmp support-files]# service mysqld start
[root@lnmp support-files]# mysql -uroot -p'1<ipz5lNWrXi'
mysql> alter user 'root'@'localhost' identified by '123456';
安装php
[root@lnmp ~]# yum install -y https://mirrors.aliyun.com/epel/epel-release-latest-8.noarch.rpm
[root@lnmp ~]# sed -i 's|^#baseurl=https://download.example/pub|baseurl=https://mirrors.aliyun.com|' /etc/yum.repos.d/epel*
[root@lnmp ~]# yum -y install libxml2 libxml2-devel openssl openssl-devel bzip2 bzip2-devel libcurl libcurl-devel libicu-devel libjpeg libjpeg-devel libpng libpng-devel openldap-devel pcre-devel freetype freetype-devel gmp gmp-devel libmcrypt libmcrypt-devel readline readline-devel libxslt libxslt-devel mhash mhash-devel php-mysqlnd http://mirror.centos.org/centos/8-stream/PowerTools/x86_64/os/Packages/oniguruma-devel-6.8.2-2.el8.x86_64.rpm sqlite-devel openssl-devel pcre-devel expat-devel libtool gcc gcc-c++ libsqlite3x-devel libzip-devel
[root@lnmp ~]# cd /usr/src/
[root@lnmp src]# wget https://www.php.net/distributions/php-8.1.11.tar.gz
[root@lnmp src]# tar xf php-8.1.11.tar.gz -C /usr/local/
[root@lnmp src]# cd /usr/local/php-8.1.11/
[root@lnmp php-8.1.11]# ./configure --prefix=/usr/local/php --with-config-file-path=/etc --enable-fpm --disable-debug --disable-rpath --enable-shared --enable-soap --with-openssl --enable-bcmath --with-iconv --with-bz2 --enable-calendar --with-curl --enable-exif --enable-ftp --enable-gd --with-jpeg --with-zlib-dir --with-freetype --with-gettext --enable-mbstring --enable-pdo --with-mysqli=mysqlnd --with-pdo-mysql=mysqlnd --with-readline --enable-shmop --enable-simplexml --enable-sockets --with-zip --enable-mysqlnd-compression-support --with-pear --enable-pcntl --enable-posix
[root@lnmp php-8.1.11]# make && make install
[root@lnmp php]# cd /usr/local/php
[root@lnmp php]# cp etc/php-fpm.conf.default etc/php-fpm.conf
[root@lnmp php]# cp etc/php-fpm.d/www.conf.default etc/php-fpm.d/www.conf
[root@lnmp php]# echo 'export PATH=/usr/local/php/bin:$PATH' > /etc/profile.d/php.sh
[root@lnmp php]# source /etc/profile.d/php.sh
[root@lnmp php]# vim /etc/ld.so.conf.d/php.conf
[root@lnmp php]# cat /etc/ld.so.conf.d/php.conf
/usr/local/php/lib
[root@lnmp php]# ln -s /usr/local/php/include/ /usr/include/php
[root@lnmp php]# vim /lib/systemd/system/php.service
[root@lnmp php]# systemctl start php.service
[root@lnmp php]# systemctl enable php.service
[root@lnmp html]# vim /usr/local/nginx/conf/nginx.conf
server {
listen 81;
server_name localhost;
location / {
root html;
index index.html;
}
}
server {
listen 80;
server_name localhost;
#charset koi8-r;
#access_log logs/host.access.log main;
location / {
root html;
index index.php index.html index.htm;
}
location ~ \.php$ {
root html;
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}
添加php访问页面
[root@lnmp html]# cd /usr/local/nginx/html/
[root@lnmp html]# cat index.php
<?php
phpinfo();
?>
http主机
安装http
[root@http ~]# dnf -y install httpd
[root@http ~]# cd /var/www/html/
[root@http html]# echo 'http' > index.html
[root@http html]# cat index.html
http
测试动静分离
静
动
