docker安装lnmp环境

一、什么是dockerfile

docker是以镜像作为基础环境，而dockerfile就是创建镜像的一种方法。dockerfile相当于一个脚本，当docker运行这个脚本，就能创建项对应的镜像。dockerfile有严格的格式和单独的指令

三、构建镜像

1.构建lnmp

（一）创建工作目录

mkdir -p /root/dockerfile/LNMP

（二）编写dockerfile

cd  /root/dockerfile/LNMP
vim Dockerfile

from daocloud.io/centos:6
maintainer L
#安装nginx
run yum -y install zlib-devel gcc gcc-c++  pcre-devel wget
run useradd -M -s /sbin/nologin nginx
run wget http://mirrors.sohu.com/nginx/nginx-1.6.0.tar.gz 
run tar zxf nginx-1.6.0.tar.gz
workdir /nginx-1.6.0/
run ./configure --prefix=/usr/local/nginx --user=nginx --group=nginx --with-http_stub_status_module && make && make install
expose 80
expose 443
#安装MySQL
RUN yum -y install ncurses-devel 
run wget http://www.cmake.org/files/v3.7/cmake-3.7.1.tar.gz
run tar zxf cmake-3.7.1.tar.gz
workdir cmake-3.7.1
run ./configure && make && make install
run groupadd mysql
run useradd -M -s /sbin/nologin -g mysql mysql
run wget http://downloads.mysql.com/archives/mysql-5.5/mysql-5.5.22.tar.gz
run tar zxf mysql-5.5.22.tar.gz
workdir mysql-5.5.22
run cmake -DCMAKE_INSTALL_PREFIX=/usr/local/mysql -DSYSCONFDIR=/etc -DDEFAULT_CHARSET=utf8 -DDEFAULT_COLLATION=utf8_general_ci -DWITH_EXTRA_CHARSETS=all && make && make install
run chown -R mysql:mysql /usr/local/mysql/
run rm -rf my.cnf
run cp support-files/my-medium.cnf /etc/my.cnf
run /usr/local/mysql/scripts/mysql_install_db --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data/
run cp /usr/local/mysql/support-files/mysql.server /etc/rc.d/init.d/mysqld
run chmod +x /etc/rc.d/init.d/mysqld
expose 3306
#安装PHP
run wget https://www.php.net/distributions/php-5.3.28.tar.gz
run yum -y install libpng libpng-devel pcre pcre-devel libxml2-devel libjepeg-devel
run tar zxf php-5.3.28.tar.gz
workdir php-5.3.28
run ./configure --prefix=/usr/local/php5 --with-gd --with-zlib --with-mysql=/usr/local/mysql/ --with-config-file-path=/usr/local/php5 --enable-mbstring --enable-fpm && make && make install
run cp php.ini-development /usr/local/php5/php.ini
workdir /
#安装ZendGuardLoader
run wget http://downloads.zend.com/guard/5.5.0/ZendGuardLoader-php-5.3-linux-glibc23-x86_64.tar.gz
run tar zxf ZendGuardLoader-php-5.3-linux-glibc23-x86_64.tar.gz
workdir ZendGuardLoader-php-5.3-linux-glibc23-x86_64/php-5.3.x
run cp ZendGuardLoader.so /usr/local/php5/lib/php/
run echo "zend_extension=/usr/local/php5/lib/php/ZendGuardLoader.so" >> /usr/local/php5/php.ini
run echo "zend_loader.enable=1" >> /usr/local/php5/php.ini
workdir /usr/local/php5/etc
run cp php-fpm.conf.default php-fpm.conf
run echo "user = nginx" >> php-fpm.conf
run echo "group = nginx" >> php-fpm.conf
run ln -s /usr/local/php5/bin/* /usr/local/bin
run ln -s /usr/local/php5/sbin/* /usr/local/sbin/
#修改nginx的配置文件
run sed -i '65,71s/#//g' /usr/local/nginx/conf/nginx.conf
run sed -i '69s/fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;/fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;/g' /usr/local/nginx/conf/nginx.conf
#复制本地的MySQL和PHP的测试网页到镜像
add test.php  /usr/local/nginx/html/test.php
add index.php /usr/local/nginx/html/index.php
add run.sh /run.sh
expose 9000
cmd ["/run.sh"]

（三）编写测试网页和启动脚本

vim run.sh
#!/bin/bash
/usr/local/php5/sbin/php-fpm
/usr/local/nginx/sbin/nginx
/usr/local/mysql/bin/mysqld_safe

vim index.php
<?php
$link=mysql_connect('localhost','root','');
if($link) echo " success";
mysql_close();
?>

vim test.php
<?php
phpinfo();
?>

（四）生成镜像

docker build -t centos6:lnmp /root/dockerfile/LNMP/

查看镜像

docker images | grep centos6

二、dockerfile指令指令作用FROM 镜像指定新镜像所基于的镜像，创建新镜像时在指定的镜像上进行创建，第一条指令必须是FROM指令MAINTAINER 名字说明新镜像维护人RUN 命令在所基于的镜像中执行的命令CMD 命令或脚本指定新镜像创建的容器在启动时要运行的命令或脚本EXPOSE 端口指定新镜像创建的容器要开启的端口ENV 环境变量 变量值设置一个环境变量COPY 源文件 目标文件将宿主机文件复制到镜像中，源文件必须和dockerfile在同一目录ADD 源文件 目标文件与COPY用法大致相同VOLUME 目录在容器中创建一个挂载点WORKDIR 路径为RUN、CMD等指定工作目录ONBUILD 命令指定所生成的镜像作为一个基础镜像时要运行的命令
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