Implementation of LNMP for separate deployment of Docker containers

[root@docker ~]# docker network create -d bridge --subnet 172.16.10.0/24 --gateway 172.16.10.1 lnmp
//Create a custom network and specify the network segment and gateway. Only when the network segment is defined can this network be used to assign a fixed IP to the container.

[root@docker ~]# docker run -itd --name test nginx    
//Run a container at random to generate the configuration files required in nginx[root@docker ~]# mkdir /wwwroot //Home directory for website access[root@docker ~]# mkdir /docker //Configuration file for Nginx//Create a directory for mounting the relevant directories of the nginx container[root@docker ~]# docker cp test:/etc/nginx /docker/
//Copy the nginx home directory in the nginx container to the locally created directory [root@docker ~]# ls /docker/
nginx
[root@docker ~]# docker cp test:/usr/share/nginx/html /wwwroot/
//Copy the web root directory in the nginx container to the locally created directory [root@docker ~]# ls /wwwroot/
html
[root@docker ~]# 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
//Run the Nginx container based on the nginx network just created and specify its IP address;
// Use the "-v" option to mount the directory to the nginx configuration file and web root directory respectively to achieve data persistence;
// In the process of achieving data persistence, the problem that some basic commands cannot be used in the nginx container is also solved.
// If you need to change the nginx configuration file or network root directory, just perform the corresponding operation in the local /data directory.
//Run the Nginx container and test [root@docker ~]# echo "hello world" > /wwwroot/html/index.html 
[root@docker ~]# curl 127.0.0.1
hello world 

[root@docker ~]# docker run --name mysql -e MYSQL_ROOT_PASSWORD=123.com -d -p 3306:3306 --network lnmp --ip 172.16.10.20 mysql:5.7
//Run the MySQL image based on the lnmp network and specify its IP address;
//MYSQL_ROOT_PASSWORD=123.com" is the root password for the specified MySQL database. //If you need to use a third-party graphical tool to connect to the database, just add the "-p" option to map port 3306 of the container to the host machine.

[root@docker ~]# docker run -itd --name phpfpm -p 9000:9000 -v /wwwroot/html:/usr/share/nginx/html --network lnmp --ip 172.16.10.30 php:7.2-fpm
//Run a container named phpfpm, map the port, mount the corresponding directory, and specify the IP address //The mounted directory is the same as the nginx main directory because the configuration file of the nginx container needs to be modified [root@docker ~]# cd /wwwroot/html/
[root@docker html]# vim test.php
<?php
phpinfo();
?>

[root@docker ~]# vim /docker/nginx/conf.d/default.conf
  location / {
    root /usr/share/nginx/html;
    index index.html index.htm index.php; //Add this section: index.php
  }

  location ~ \.php$ {
    root /usr/share/nginx/html; //Modify the root directory location of the webpage fastcgi_pass 172.16.10.30:9000; //Change to the IP address of the PHP container fastcgi_index index.php;
    fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; //Add $document_root variable include fastcgi_params;
  }
[root@docker ~]# docker restart nginx //Restart nginx service nginx

[root@docker ~]# wget https://files.phpmyadmin.net/phpMyAdmin/4.9.1/phpMyAdmin-4.9.1-all-languages.zip
//Download phpmyadmin source code package[root@docker ~]# unzip phpMyAdmin-4.9.1-all-languages.zip //Unzip the source code package[root@docker ~]# mv phpMyAdmin-4.9.1-all-languages ​​/wwwroot/html/phpmyadmin //Change the name of the unzipped directory[root@docker ~]# vim /docker/nginx/conf.d/default.conf //Edit the Nginx main configuration filelocation /phpmyadmin {
    root /usr/share/nginx/html;
    index index.html index.htm index.php ;
  }

location ~ /phpmyadmin/(?<after_ali>(.*)\.(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;
  } 

[root@docker ~]# docker restart nginx //Restart the nginx container [root@docker ~]# docker ps | grep nginx Ensure that the nginx container is running normally f8442dc794b9 nginx "/docker-entrypoint.…" About an hour ago Up 24 seconds 0.0.0.0:80->80/tcp nginx

[root@docker html]# vim Dockerfile #Write the Dockerfile file. The beginning of the file is the code provided by the official website 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 \ //Add slash&& docker-php-ext-install mysqli pdo pdo_mysql //Add this line to support the mysql connection function//After writing, save and exit [root@docker html]# docker build -t phpmyadmin . //Generate a new image. Do not leave out the "." at the end of the command.
[root@docker html]# docker rm -f phpfpm //The original PHP container can be deleted [root@docker html]# docker run -itd --name phpfpm -p 9000:9000 -v /wwwroot/html:/usr/share/nginx/html --network lnmp --ip 172.16.10.30 phpmysql
//Run a new PHP container based on the newly created PHP image [root@docker ~]# cd /wwwroot/html/phpmyadmin/
[root@docker phpmyadmin]# mv config.sample.inc.php config.inc.php 
[root@docker phpmyadmin]# vim config.inc.php //Write php configuration file $cfg['Servers'][$i]['host'] = '172.16.10.20'; Change it to the IP address of the mysql container 

[root@docker phpmyadmin]# docker restart phpfpm //Restart php
phpfpm
[root@docker phpmyadmin]# docker ps | grep phpfpm // Make sure the PHP container is running normally c9feb2df0603 phpmysql "docker-php-entrypoi…" 11 minutes ago Up About a minute 0.0.0.0:9000->9000/tcp phpfpm