Docker项目部署lnmp+wordpress

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=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 <wl>
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_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 <wl>
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 <wl>
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