Docker deployment lnmp cluster

The IP address range of LNMP is:

172.16.10.0/24

Service container and each ip:

Nginx 172.16.10.10

Mysql 172.16.10.20

Php 172.16.10.30 *

Import the image package:

Mysql5.7

Php.7.2-fpm.tar

Wordpress.tar

Nginx.tar

Import the imported image package into an image available to docker:

Docker load

< nginx.tar && docker load < wordpress.tar && docker load < mysql-5.7.tar && docker load < nginx.tar && docker load < php.7.2-fpm.tar 宿主机创建两个目录： 分别是： 网站的访问主目录：mkdir /wwwroot 配置文件目录： mkdir /docker nginx准备工作： nginx配置文件：/etc/nginx/conf.d nginx主目录：/usr/share/nginx/html 先运行一个nginx容器，将容器里的nginx主目录和配置文件导出来： docker run -itd --name test nginx:latest docker cp test:/etc/nginx /docker docker cp test:/usr/share/nginx/html /wwwroot 查看80端口，不可被占用： netstat -anpt | grep 80 准备工作已经完成，接下来开始部署各个服务： 1）创建一个自定义网络： docker network create -d bridge --subnet 172.16.10.0/24 --gateway 172.16.10.1 lnmp 2）运行nginx： docker run -itd --name nginx -v /docker/nginx:/etc/nginx -v /wwwroot/html:/usr/share/nginx/html -p 80:80 --network lnmp --ip 172.16.10.10 nginx 更改nginx访问界面： cd /wwwroot/html cat index.html Hello lnmp 访问本机验证： curl 127.0.0.1 Hello lnmp 浏览器访问出下面就成功：

3) run mysql:

Run a mysql container and create a password of 123.com for it:

Docker run-- name mysql-e MYSQL_ROOT_PASSWORD=123.com-d-p 3306 MYSQL_ROOT_PASSWORD=123.com-- network lnmp-- ip 172.16.10.20 mysql:5.7

Log in to mysql to verify:

Download a mysql first

[root@localhost ~] # yum-y install mysql

Access authentication:

[root@localhost] # mysql-u root-p123.com-h 127.0.0.1-P 3306

Randomly create a new library for verification:

MySQL [(none)] > create database name

Then check to see if there is a library you just created:

MySQL [(none)] > show databases

4) run the php container:

Run a php container

[root@localhost] # docker run-itd-- name phpfpm-p 9000itd 9000-v / wwwroot/html:/usr/share/nginx/html-- network lnmp-- ip 172.16.10.30 php:7.2-fpm

Add the php test interface:

[root@localhost html] # pwd

/ wwwroot/html

[root@localhost html] # vim test.php

Browser access: successful when the following interface appears

5) modify nginx configuration file, nginx and php connection

[root@localhost conf.d] # pwd

/ docker/nginx/conf.d

[root@localhost conf.d] # vim default.conf

Line 10: add index.php parsing

​ index index.html index.htm index.php

Line 30: open the module (remove # and add) and change the phase information:

Location ~ .php ${

Root / usr/share/nginx/html

Fastcgi_pass 172.16.10.30:9000

Fastcgi_index index.php

Fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name

Include fastcgi_params

}

Restart the nginx service:

[root@localhost conf.d] # docker restart nginx

Nginx

Turn off the firewall:

[root@localhost conf.d] # systemctl stop firewalld

[root@localhost conf.d] # systemctl disable firewalld

Restart docker:

[root@localhost conf.d] # systemctl daemon-reload

[root@localhost conf.d] # systemctl restart docker

Restart all containers:

[root@localhost conf.d] # docker ps-a-Q | xargs docker start

Next is the connection between php and mysql, where we use a phpMyAdmin database management tool.

Download and import phpMyAdmin-4.9.1-all-languages

Import the required packages:

[root@localhost html] # pwd

/ wwwroot/html

[root@localhost html] # ls

50x.html phpMyAdmin-4.9.1-all-languages.zip

Index.html test.php

Decompress:

[root@localhost html] # unzip phpMyAdmin-4.9.1-all-languages.zip

[root@localhost html] # ls

50x.html phpMyAdmin-4.9.1-all-languages test.php

Index.html phpMyAdmin-4.9.1-all-languages.zip

The name is too long to remember. It will be changed in the nginx configuration file later. Rename it:

[root@localhost html] # mv phpMyAdmin-4.9.1-all-languages phpmyadmin

[root@localhost html] # ls

50x.html phpmyadmin test.php

Index.html phpMyAdmin-4.9.1-all-languages.zip

/ / change the nginx configuration file:

[root@localhost html] # cd / docker/nginx/conf.d/

[root@localhost conf.d] # vim default.conf

27 lines add:

Location / phpmyadmin {root / usr/share/nginx/html; index index.html index.htm index.php;}

41 lines add:

Location ~ / phpmyadmin/ (? (. *). (php | php5)? $) {

Root / usr/share/nginx/html

Fastcgi_pass 172.16.10.30:9000

Fastcgi_index index.php

Fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; include fastcgi_params

}

Restart nginx:

[root@localhost conf.d] # docker restart nginx

Nginx

Browser access

Native ip/phpmyadmin/index.php

The red box is a normal phenomenon, don't panic, and then solve it.

We need to make changes to the php image to add modules for php and mysql connections

Write a Dockerfile:

[root@localhost ~] # vim Dockerfile

FROM php:7.2-fpm

RUN apt-get update & & apt-get install-y\

Libfreetype6-dev\

Libjpeg62-turbo-dev\

Libpng-dev\

& & docker-php-ext-install-j$ (nproc) iconv\

& & docker-php-ext-configure gd-with-freetype-dir=/usr/include/-with-jpeg-dir=/usr/include/\

& & docker-php-ext-install-j$ (nproc) gd\

& & docker-php-ext-install mysqli pdo pdo_mysql

Execute it: this command takes a long time to load, please wait patiently!

[root@localhost] # docker build-t phpmysql.

Check to see if there are any newly created images:

[root@localhost ~] # docker images

[root@localhost ~] # docker stop phpfpm

Mine is this:

Phpmysql latest 6e65aee3bd4d 9 minutes ago 422MB

Turn off the previous php image:

[root@localhost ~] # docker stop phpfpm

Phpfpm

Delete the previous php container

[root@localhost ~] # docker rm phpfpm

Phpfpm

Create a new php container using the newly created php image

[root@localhost] # docker run-itd-- name phpfpm-p 9000itd 9000-v / wwwroot/html:/usr/share/nginx/html-- network lnmp-- ip 172.16.10.30 phpmysql

/ / modify the configuration file of phpmyadmin to specify the ip of the connected database

[root@localhost phpmyadmin] # pwd

/ wwwroot/html/phpmyadmin

Rename:

[root@localhost phpmyadmin] # cp config.sample.inc.php config.inc.php

Edit:

[root@localhost phpmyadmin] # vim config.inc.php

Line 31: change to ip of mysql database

$cfg ['Servers'] [$I] [' host'] = '172.16.10.20'

Restart the php container:

[root@localhost phpmyadmin] # docker restart phpfpm

Phpfpm

Browser access: native ip/phpmyadmin/index.php

The following interface appears successfully

User: root password: 123.com

If you log in successfully, you will see the database you created earlier:

At this point, lnmp deployment is complete!