一.项目环境
公司在实际的生产环境中，需要使用Docker 技术在一台主机上创建LNMP服务并运行Wordpress网站平台。然后对此服务进行相关的性能调优和管理工作。
1.1 环境描述
主机 操作系统 IP地址 主要软件
Docker CentOS 7.3 x86_64 192.168.50.51 Docker 19.03
1.2 项目需求
（1）使用Docker构建LNMP环境并运行Wordpress网站平台。
（2）限制Nginx容器最多使用500Mb的内存和1G的Swap。
（3）限制Mysql容器写 /dev/sda 的速率为 10 MB/s。
（4）将所有容器进行快照，然后将Docker镜像打包成tar包备份到本地
二.部署
2.1基础环境准备
systemctl stop firewalld
systemctl disable firewalld
setenforce 0
#关闭防火墙和核心防护
docker pull centos:7
#从docker Hub公共仓库下载基础镜像
docker network create --subnet=服务器托管网172.18.0.0/16 --opt "com.docker.network.bridge.name"="docker1" mynetwork
#设置自定义网络模式，模式为bridge模式，docker1的ip地址为172.18.0.1，显示的网络名称mynetwork。
docker network ls
#查看使用的网络模式
ifconfig
2.2部署nginx（容器IP为172.18.0.10）
mkdir /opt/nginx
cd /opt/nginx/
上传 nginx-1.12.0.tar.gz、wordpress-4.9.4-zh_CN.tar.gz 到 /opt/nginx/ 目录中
mkdir /opt/nginx/html
tar zxvf wordpress-4.9.4-zh_CN.tar.gz -C /opt/nginx/html
vim Dockerfile
FROM centos:7
MAINTAINER this is nginx image
RUN yum -y install pcre-devel zlib-devel gcc gcc-c++ make
RUN useradd -M -s /sbin/nologin nginx
ADD nginx-1.12.0.tar.gz /usr/local/src/
WORKDIR /usr/local/src/nginx-1.12.0
RUN ./configure
--prefix=/usr/local/nginx
--user=nginx
--group=nginx
--with-http_stub服务器托管网_status_module && make && make install
ENV PATH /usr/local/nginx/sbin:$PATH
ADD nginx.conf /usr/local/nginx/conf/
#ADD wordpress-4.9.4-zh_CN.tar.gz /usr/local/nginx/html/
RUN chmod 777 -R /usr/local/nginx/html/
EXPOSE 80
EXPOSE 443
ENTRYPOINT [ "/usr/local/nginx/sbin/nginx", "-g", "daemon off;" ]
2.3构建镜像
docker build -t nginx:lnmp .
#构建nginx镜像(别忘记最后的点)
docker run -d --name nginx -p 80:80 -v /opt/nginx/html:/usr/local/nginx/html --net mynetwork --ip 172.18.0.10 nginx:lnmp
2.4部署mysql（容器IP 为 172.18.0.20）
mkdir /opt/mysqld
cd /opt/mysqld
上传 mysql-boost-5.7.20.tar.gz 到 /opt/mysqld 目录中
vim Dockerfile
FROM centos:7
MAINTAINER this is mysql image
RUN yum -y install gcc gcc-c++ ncurses ncurses-devel bison cmake make
ADD mysql-boost-5.7.20.tar.gz /usr/local/src/
WORKDIR /usr/local/src/mysql-5.7.20/
RUN cmake
-DCMAKE_INSTALL_PREFIX=/usr/local/mysql
-DMYSQL_UNIX_ADDR=/usr/local/mysql/mysql.sock
-DSYSCONFDIR=/etc
-DSYSTEMD_PID_DIR=/usr/local/mysql
-DDEFAULT_CHARSET=utf8
-DDEFAULT_COLLATION=utf8_general_ci
-DWITH_INNOBASE_STORAGE_ENGINE=1
-DWITH_ARCHIVE_STORAGE_ENGINE=1
-DWITH_BLACKHOLE_STORAGE_ENGINE=1
-DWITH_PERFSCHEMA_STORAGE_ENGINE=1
-DMYSQL_DATADIR=/usr/local/mysql/data
-DWITH_BOOST=boost
-DWITH_SYSTEMD=1 && make && make install
ADD my.cnf /etc/
ENV PATH=/usr/local/mysql/bin:/usr/local/mysql/lib:$PATH
RUN useradd -M -s /sbin/nologin mysql
RUN chown mysql:mysql /etc/my.cnf
RUN chown -R mysql:mysql /usr/local/mysql/
RUN /usr/local/mysql/bin/mysqld
--initialize-insecure
--user=mysql
--basedir=/usr/local/mysql
--datadir=/usr/local/mysql/data
EXPOSE 3306
CMD ["/usr/local/mysql/bin/mysqld"]
准备my.conf文件
vim my.cnf
[client]
port = 3306
socket = /usr/local/mysql/mysql.sock
[mysql]
port = 3306
socket = /usr/local/mysql/mysql.sock
[mysqld]
user = mysql
basedir = /usr/local/mysql
datadir = /usr/local/mysql/data
port = 3306
character_set_server=utf8
pid-file = /usr/local/mysql/mysqld.pid
socket = /usr/local/mysql/mysql.sock
server-id = 1
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_AUTO_VALUE_ON_ZERO,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,PIPES_AS_CONCAT,ANSI_QUOTES
生成镜像
docker build -t mysql:lnmp .
docker run --name=mysql -d --privileged -v /usr/local/mysql --net mynetwork --ip 172.18.0.20 mysql:lnmp
2.5部署php（容器IP 为 172.18.0.30）
mkdir /opt/php
cd /opt/php
上传 php-7.1.10.tar.bz2 到 /opt/php 目录中
vim Dockerfile
FROM centos:7
MAINTAINER this is php image
RUN yum -y install gd
libjpeg libjpeg-devel
libpng libpng-devel
freetype freetype-devel
libxml2 libxml2-devel
zlib zlib-devel
curl curl-devel
openssl openssl-devel
gcc gcc-c++ make pcre-devel
RUN useradd -M -s /sbin/nologin nginx
ADD php-7.1.10.tar.bz2 /usr/local/src/
WORKDIR /usr/local/src/php-7.1.10
RUN ./configure
--prefix=/usr/local/php
--with-mysql-sock=/usr/local/mysql/mysql.sock
--with-mysqli
--with-zlib
--with-curl
--with-gd
--with-jpeg-dir
--with-png-dir
--with-freetype-dir
--with-openssl
--enable-fpm
--enable-mbstring
--enable-xml
--enable-session
--enable-ftp
--enable-pdo
--enable-tokenizer
--enable-zip && make && make install
ENV PATH /usr/local/php/bin:/usr/local/php/sbin:$PATH
ADD php.ini /usr/local/php/lib/
ADD php-fpm.conf /usr/local/php/etc/
ADD www.conf /usr/local/php/etc/php-fpm.d/
EXPOSE 9000
ENTRYPOINT [ "/usr/local/php/sbin/php-fpm", "-F" ]
生成镜像
docker build -t php:lnmp .
docker run --name=php -d -p 9000:9000 --volumes-from mysql --volumes-from nginx --net mynetwork --ip 172.18.0.30 php:lnmp
2.6启动wordpress服务
登录到mysql容器中，授权
docker exec -it mysql bash
#登录到mysql容器
mysql
#登录到容器中
create database wordpress;
#创建一个数据库
grant all privileges on wordpress.* to 'wordpress'@'%' identified by 'abc123';
grant all privileges on *.* to 'root'@'%' identified by 'abc123';
flush privileges;
浏览器访问 http://192.168.80.15/wordpress/index.php
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