2019-05-8笔记.2

Day48

课堂笔记

2019年5月8日

LNMP全yum部署安装和集群架构迁移

1)yum安装NGINX

[root@web02 ~]# cat /etc/yum.repos.d/nginx.repo #<==配置Nginx官方yum源。

[nginx]

name=Nginx repo by oldboy

baseurl=http://nginx.org/packages/centos/7/$basearch/

gpgcheck=0

enabled=1

说明:如果是用epel源安装需要提前配置epel源,本书安装系统时已经配置过了epel源了。

[root@web02 ~]# rpm -qa nginx              #<==提前检查,发现没有。

[root@web02 ~]# yum install nginx -y       #<==开始yum安装nginx。

[root@web02 ~]# rpm -qa nginx

nginx-1.16.0-1.el7.ngx.x86_64              #<==安装完毕后检查,发现有了。

[root@web02 ~]# systemctl start nginx      #<==启动Nginx服务。。

[root@web02 ~]# systemctl enable nginx     #<==设置开机自启动。

Created symlink from /etc/systemd/system/multi-user.target.wants/nginx.service to /usr/lib/systemd/system/nginx.service.

[root@web02 ~]# systemctl status nginx     #<==查看状态。

● nginx.service - nginx - high performance web server

   Loaded: loaded (/usr/lib/systemd/system/nginx.service; enabled; vendor preset: disabled)

Active: active (running) since六 2019-05-04 11:04:21 CST; 9s ago

[root@web02 ~]# netstat -lntup|grep nginx  #<==检查端口。

tcp        0      0 0.0.0.0:80     0.0.0.0:*       LISTEN      7854/nginx: master

[root@web02 ~]# wget 127.0.0.1             #<==测试访问。

--2019-05-04 11:05:37--  http://127.0.0.1/

正在连接127.0.0.1:80...已连接。

已发出HTTP请求,正在等待回应... 200 OK

长度:612 [text/html]

正在保存至: “index.html”               #<==出现这个提示表示,Nginx成功安装了。

100%[========================================>] 612         --.-K/s用时 0s      

2019-05-04 11:05:37 (39.5 MB/s) -已保存 “index.html” [612/612])

 

2) yum安装PHP

第一个:解决PHP软件冲突

yum remove php-mysql php php-fpm php-common

第二个:更新yum源信息,用户安装php程序

 

#准备yum安装软件扩展源信息

wget -q https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm

wget -q https://mirror.webtatic.com/yum/el7/webtatic-release.rpm

 

rpm -Uvh epel-release-latest-7.noarch.rpm

rpm -Uvh webtatic-release.rpm

第三个:直接安装php服务相关软件

yum install php71w php71w-cli php71w-common php71w-devel php71w-embedded   -y

yum install php71w-gd php71w-mcrypt php71w-mbstring php71w-pdo php71w-xml  -y

yum install php71w-fpm php71w-mysqlnd php71w-opcache  php71w-pecl-memcached  -y

yum install php71w-pecl-redis php71w-pecl-mongodb -y

###############检查是否安装成功###############

rpm -qa mod_php71w php71w-cli php71w-common php71w-devel php71w-embedded

rpm -qa php71w-gd php71w-mcrypt php71w-mbstring php71w-pdo php71w-xml

rpm -qa php71w-fpm php71w-mysqlnd php71w-opcache

rpm -qa php71w-pecl-redis php71w-pecl-mongodb php71w-pecl-memcached

 

启动

php-fpm -t

systemctl start php-fpm

systemctl enable php-fpm

 

============================================

php71w         ---主程序软件

php71w-gd      ---和显示图形相关的软件

php71w-mcrypt  ---和数据传输加密相关

php71w-pdo     ---让php和数据库建立联系

php71w-fpm     ---

==========================================

[root@web01 /]# rpm -ql mod_php71w

/etc/httpd/conf.d/php.conf            ---

/etc/httpd/conf.modules.d/10-php.conf

/usr/lib64/httpd/modules/libphp7-zts.so

/usr/lib64/httpd/modules/libphp7.so

/usr/share/httpd/icons/php.gif

/var/lib/php/session

/var/lib/php/wsdlcache

===========================

[root@web01 /]# rpm -ql php71w-fpm

/etc/logrotate.d/php-fpm

/etc/php-fpm.conf         --- PHP FPM配置

/etc/php-fpm.d

/etc/php-fpm.d/www.conf   --- PHP FPM子目录配置

/etc/sysconfig/php-fpm

/usr/lib/systemd/system/php-fpm.service

/usr/lib/tmpfiles.d/php-fpm.conf

/usr/sbin/php-fpm         --- PHP FPM启动命令

 

 

重要文件和目录信息

/etc/php-fpm.conf    ---php-fpm进程的配置文件

/etc/php-fpm.d       ---php-fpm进程加载配置文件的目录

/etc/php-fpm.d/www.conf

user = nginx        ---利用指定用户管理php工作进程    建议配置和nginx服务相同的用户

group = nginx       ---利用指定用户组管理php工作进程

listen = 127.0.0.1:9000   ---指定php服务运行后, 监听的地址和端口信息

listen.allowed_clients = 127.0.0.1   ---只允许本地访问php 9000端口服务

 

3) yum安装mariadb数据库(mysql同源)

yum install mariadb mariadb-server -y

systemctl start mariadb.service

systemctl enable mariadb.service

 

4)验证MariaDB安装

[root@web01 ~]# mysql

Welcome to the MariaDB monitor.  Commands end with ; or \g.

Your MariaDB connection id is 2

Server version: 5.5.60-MariaDB MariaDB Server

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]>  #<==成功标识。

 

 

 

5)配置测试PHP

a.调整转发PHP请求

[root@web01 /etc/nginx/conf.d]# cat blog.conf

server {

        listen       80;

        server_name  blog.etiantian.org;

        location / {

    root   /usr/share/nginx/html/blog;

            index  index.php;

 

location ~ .*\.(php|php5)?$ {

        root   /usr/share/nginx/html/blog;

fastcgi_index index.php;

fastcgi_pass 127.0.0.1:9000;

fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;

include fastcgi_params;

        }

    }

nginx -t

systemctl reload nginx

netstat -lntup|grep nginx

 

 

测试:

echo "" > /usr/share/nginx/html/test_info.php

php /usr/share/nginx/html/test_info.php

浏览器打开。

 

10.0.0.7/test_info.php

 

6)配置测试mysql

[root@web01 /usr/share/nginx/html]# mysql

Welcome to the MariaDB monitor.  Commands end with ; or \g.

Your MariaDB connection id is 3

Server version: 5.5.60-MariaDB MariaDB Server

 

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

 

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

 

MariaDB [(none)]> create database wordpress;

Query OK, 1 row affected (0.00 sec)

 

MariaDB [(none)]> grant all on wordpress.* to wordpress@'localhost' identified by 'oldboy123';

Query OK, 0 rows affected (0.05 sec)

 

MariaDB [(none)]> flush privileges;

Query OK, 0 rows affected (0.00 sec)

 

MariaDB [(none)]> quit

Bye

[root@web01 /usr/share/nginx/html]# cat test_mysql.php

$link_id=mysqli_connect('localhost','wordpress','oldboy123') or mysql_error();

if($link_id){

echo "mysql successful by oldboy.\n";

}else{

echo mysql_error();

}

?>

[root@web01 /usr/share/nginx/html]# php test_mysql.php

mysql successful by oldboy.

 

 

 

集群调整:

1)web02 blog数据迁移至web01

scp -rp 172.16.1.8:/application/nginx/html/blog /usr/share/nginx/html

2)配置调整,伪静态,路径加blog

[root@web01 /etc/nginx/conf.d]# cat blog.conf

server {

        listen       80;

        server_name  blog.etiantian.org;

        location / {

    root   /usr/share/nginx/html/blog; ###################

            index  index.php;

        }

if (-f $request_filename/index.html){

    rewrite (.*) $1/index.html break;

}

if (-f $request_filename/index.php){

            rewrite (.*) $1/index.php;

}

if (!-f $request_filename){

    rewrite (.*) /index.php;

}

        location ~ .*\.(php|php5)?$ {

        root   /usr/share/nginx/html/blog;

fastcgi_index index.php;

fastcgi_pass 127.0.0.1:9000;

fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;

include fastcgi_params;

        }

    }

3)共享存储调整

yum install rpcbind nfs-utils -y

systemctl start rpcbind

systemctl enable rpcbind

 

mount -t nfs 172.16.1.31:/data/blog_nfs  /usr/share/nginx/html/blog/wp-content/uploads

ls /usr/share/nginx/html/blog/wp-content/uploads

别忘了,开机自动挂载。

 

 

WEB01:lnmp单机

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