制作LAMP架构镜像并上线wordpress

拉取centos7镜像
docker pull centos:7
创建一个centos初始化目录
mkdir /centos
切换到目录
cd /centos

并按照如下的dockerfile初始化镜像
vim Dockerfile
FROM centos:7
ENV container docker
RUN (cd /lib/systemd/system/sysinit.target.wants/; for i in *; do [ $i ==
systemd-tmpfiles-setup.service ] || rm -f $i; done);
rm -f /lib/systemd/system/multi-user.target.wants/*;
rm -f /etc/systemd/system/*.wants/*;
rm -f /lib/systemd/system/local-fs.target.wants/*;
rm -f /lib/systemd/system/sockets.target.wants/*udev*;
rm -f /lib/systemd/system/sockets.target.wants/*initctl*;
rm -f /lib/systemd/system/basic.target.wants/*;
rm -f /lib/systemd/system/anaconda.target.wants/*;
VOLUME [ "/sys/fs/cgroup" ]
CMD ["/usr/sbin/init"]

生成创建出来的centos镜像
docker build -t centos:v1

创建一个基于lamp的目录
mkdir centos_lamp

切换到lamp目录
cd centos_lamp/

把local.repo文件发送到镜像中，因为镜像文件没有mariad数据库
local.repo文件内容
vim local.repo

[local]
name=local
enabled=1
gpgcheck=0
baseurl=https://mirrors.aliyun.com/centos/7/os/x86_64/

~

编写制作LAMP架构的dockerfile
vim Dockerfile
FROM centos:v1
COPY local.repo /etc/yum.repos.d/
COPY wordpress /var/www/html/
RUN yum -y install httpd mariadb-server php php-mysql; yum clean all; systemctl restart mariadb httpd;systemctl enable mariadb httpd.service
EXPOSE 80 3306
CMD ["/usr/sbin/init"]
 

把配置好的wordpress安装包复制到网站根目录下并解压
ls /centos/centos_lamp/
Dockerfile local.repo wordpress wordpress-3.3.1-zh_CN.zip

生成创建出来的lamp镜像
docker build -t centos_lamp:v1

运行容器
docker run -d -v /sys/fs/cgroup/:/sys/fs/cgroup/ -p 888:80 --privileged centos-lamp:v1
 
–privileged 让容器能够获得更多特权，否则在容器内部不能使用systemctl，会报如下的错
Failed to get D-Bus connection: Operation not permitted
 
：进入容器创建数据库
docker exec -it f80ed6fb67b3 bash
[root@f80ed6fb67b3 /]# ls /var/www/html/
index.php wp-activate.php wp-config-sample.php wp-links-opml.php wp-register.php
license.txt wp-admin wp-config.php wp-load.php wp-settings.php
readme.html wp-app.php wp-content wp-login.php wp-signup.php
wordpress wp-blog-header.php wp-cron.php wp-mail.php wp-trackback.php
wordpress-3.3.1-zh_CN.zip wp-comments-post.php wp-includes wp-pass.php xmlrpc.php
切换到目录里
cd /var/www/html

复制编辑文件
cp wp-config-sample.php wp-config.php
vim wp-config.php
define('DB_NAME', 'zxw');

/** MySQL 数据库用户名 */
define('DB_USER', 'zxw');

/** MySQL 数据库密码 */
define('DB_PASSWORD', '123');

 

[root@f80ed6fb67b3 /]# 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)]> create database ken;
Query OK, 1 row affected (0.00 sec)
MariaDB [(none)]> grant all on *.* to ken@'localhost' identified by '123';
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> exit
Bye
 
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