Docker is a lightweight virtualization technology, and lnmp is a powerful, open-source web running environment, so here's a demonstration of using Docker to build an lnmp image.
PS: To maintain lightweight and scalable performance, Docker encourages us to "one process per person"Container"means don't integrate too many functions into a single image. We're here to learn more, so it violates this rule. A better solution is to create mirrors for Nginx, Mysql, PHP, run in separate containers, and then communicate through interconnection between containers.
1. Pull OfficialCentos:6.9As a base image, install the base environment
[root@localhost ~]# docker pull centos:6.9 6.9: Pulling from centos 055b9989266a: Pull complete f1070d829305: Pull complete e071bce628ba: Pull complete Digest: sha256:e7bdc458659b6e644ae85694f2baaf3727c06ad82186fca80f4e3a8e88907cc3 Status: Downloaded newer image for centos:6.9 [root@localhost ~]# [root@localhost ~]# docker images REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE httpd 2.4.29 91199e851c7a 4 weeks ago 177.3 MB centos 6.9 e071bce628ba 4 weeks ago 194.7 MB ubuntu 14.04 b44ce450cb60 11 weeks ago 188 MB [root@localhost ~]# [root@localhost ~]# docker run -it centos:6.9 /bin/bash [root@df040eea8088 /]# ls bin dev etc home lib lib64 lost+found media mnt opt proc root sbin selinux srv sys tmp usr var [root@localhost ~]# [root@df040eea8088 /]# yum install -y epel-release .......
2. Install PHP
[root@df040eea8088 /]# yum install -y php php-fpm php-mysql ......... ......... [root@df040eea8088 /]# php -v PHP 5.3.3 (cli) (built: Mar 22 2017 12:27:09) Copyright (c) 1997-2010 The PHP Group Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies [root@df040eea8088 /]# php-fpm -v PHP 5.3.3 (fpm-fcgi) (built: Mar 22 2017 12:28:05) Copyright (c) 1997-2012 The PHP Group Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies [root@df040eea8088 /]# [root@df040eea8088 /]# php -m [PHP Modules] bz2 calendar Core ctype curl date ereg exif fileinfo filter ftp gettext gmp hash iconv json libxml mysql mysqli openssl pcntl pcre PDO pdo_mysql pdo_sqlite Phar readline Reflection session shmop SimpleXML sockets SPL sqlite3 standard tokenizer xml zip zlib [Zend Modules]
[root@df040eea8088 /]# yum install -y nginx .......
Configure Nginx to support PHP, modify/etc/nginx/conf.d/Default.confThe following:
#
# The default server
#
server {
listen 80 default_server;
listen [::]:80 default_server;
server_name _;
root /www; #change document_root to /www
# Load configuration files for the default server block.
include /etc/nginx/default.d/*.conf;
location / {
}
#support php access
location ~ .*\.php$ {
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}
error_page 404 /404.html;
location = /40x.html {
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
}
}
Create/www directory and modify user and user group to Apache (php-fpm default run user and group to apache)
[root@df040eea8088 /]# mkdir /www [root@df040eea8088 /]# chown apache:apache /www [root@df040eea8088 /]# ll / | grep www drwxr-xr-x. 2 apache apache 4096 Dec 4 08:21 www
[root@df040eea8088 /]# yum install -y mysql mysql-server ...... ...... [root@df040eea8088 /]# /etc/init.d/mysqld start Starting mysqld: [ OK ] [root@df040eea8088 /]# /usr/bin/mysqladmin -u root password '123456' [root@df040eea8088 /]# /etc/init.d/mysqld stop Stopping mysqld: [ OK ]
5. Write startup commands
[root@df040eea8088 /]# touch /bin/startup.sh [root@df040eea8088 /]# chmod +x /bin/startup.sh
Then toStartup.shWrite the following:
#!/bin/sh
/etc/init.d/mysqld start
/etc/init.d/php-fpm start
/etc/init.d/nginx start
#dead loop
while ((1))
do
sleep 1h
done
6. Clean up data that is no longer needed to reduce the size of the image, and docker commit generates a new image
[root@df040eea8088 /]# yum remove -y epel-release [root@df040eea8088 /]# yum clean all Loaded plugins: fastestmirror, ovl Cleaning repos: base extras updates Cleaning up Everything Cleaning up list of fastest mirrors [root@df040eea8088 /]# exit exit [root@localhost ~]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES df040eea8088 centos:6.9 "/bin/bash" 2 hours ago Exited (0) 31 seconds ago sleepy_yalow [root@localhost ~]# docker commit df0 centos:lnmp efa371fe9b0ede828fe1999e7831491d1dd24cda26f1a27092a9565f4c781e06 [root@localhost ~]# docker images REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE centos lnmp efa371fe9b0e 57 seconds ago 453.4 MB httpd 2.4.29 91199e851c7a 4 weeks ago 177.3 MB centos 6.9 e071bce628ba 4 weeks ago 194.7 MB ubuntu 14.04 b44ce450cb60 11 weeks ago 188 MB
7. Test the mirror and start the container
[root@localhost ~]# docker run -d -p 8848:80 -v /www:/www centos:lnmp /bin/startup.sh [root@localhost www]# cd /www [root@localhost www]# echo "<?php echo time() . PHP_EOL;" > index.php [root@localhost www]# cat index.php <?php echo time() . PHP_EOL; [root@localhost www]# curl '127.0.0.1:8848/index.php' 1512380042
Test mysql again
[root@localhost www]# touch /www/db.php
Code content:
<?php
$db = new mysqli('127.0.0.1', 'root', '123456', 'mysql');
if ($db->connect_errno)
{
die("Failed to connect to database". $db->connect_error);
}
echo "Connection Successful";
$db->close();
Access 127.0.0.1:8848/db.php
[root@localhost www]# curl '127.0.0.1:8848/db.php' Connection succeeded [Root@localhostWww]#
That's it ^^