原文首次发表在我的个人空间:http://www.imhou.com/?p=314
写在前面:
项目过程中,有些需要维护的项目是用的php5版本,但是新项目却是用的php7版本,难免在代码和服务器上有些许不兼容,导致在一台服务器上搭建环境也不太好配置,要考虑软件的兼容问题,实在麻烦。所以就想到用Docker来创建镜像,各自运行在对应的容器中,互不干扰,很好地利用来服务器资源。
准备:阿里云账户
首先在阿里云注册个账号,进入容器镜像服务,创建命名空间
https://cr.console.aliyun.com/#/namespace/index
例如,我们创建一个imhou 的空间
2. 创建一个镜像仓库https://cr.console.aliyun.com/#/imageList这里使用阿里云Code 作为代码库。每次更新都会自动构建。
3. 建立好之后,就去代码里面添加相应文件
files/Dockerfile
FROMregistry.cn-hangzhou.aliyuncs.com/docker/ubuntu14.04
RUN apt-get -y update\
&& apt install -y php5 php5-mysql php5-curl php5-gd php5-intl php-pear php5-imagick php5-imap php5-mcrypt php5-memcache php5-ming php5-ps php5-pspell php5-recode php5-snmp php5-sqlite php5-tidy php5-xmlrpc php5-xsl\
&& apt install -y apache2\
&& apt-get purge -y --auto-remove\
&& php5enmod mcrypt\
&& a2enmod rewrite\
&& rm -rf /etc/apache2/sites-available/000-default.conf\
&& apt-get autoremove
EXPOSE 80
ADD run.sh /usr/local/sbin/run.sh
ADD 000-default.conf /etc/apache2/sites-available/000-default.conf
RUN chmod 755 /usr/local/sbin/run.sh
CMD ["/usr/local/sbin/run.sh”]
重点:
mcrypt的安装,使用apt install php5-mcrypt,安装好之后,使用 php5enmod mcrypt 打开 mcrypt module
apache2 的的安装,使用 apt install -y apache2,安装好之后,使用 a2enmod rewrite 打开 rewrite module
要往000-default.conf里面加配置内容,不太好加,干脆直接替换掉新的,这样更方便在新文件中做配置
新建files/run.sh 目的用于后台运行apache2 进程
#!/bin/bash
service apache2 start&&tail -f /dev/null
新建000-default.conf,目的替换部分配置,主要是新增这个
AllowOverrideAll
OptionsIndexesFollowSymLinks
Requireallgranted
完整如下:
# The ServerName directive sets the request scheme, hostname and port that # the server uses to identify itself. This is used when creating # redirection URLs. In the context of virtual hosts, the ServerName # specifies what hostname must appear in the request's Host: header to # match this virtual host. For the default virtual host (this file) this # value is not decisive as it is used as a last resort host regardless. # However, you must set it for any further virtual host explicitly.#ServerNamewww.example.com ServerName localhost ServerAdmin webmaster@localhost DocumentRoot /var/www/html AllowOverride All Options Indexes FollowSymLinks Require all granted # Available loglevels: trace8, ..., trace1, debug, info, notice, warn, # error, crit, alert, emerg. # It is also possible to configure the loglevel for particular # modules, e.g. #LogLevel info ssl:warn ErrorLog ${APACHE_LOG_DIR}/error.log CustomLog ${APACHE_LOG_DIR}/access.log combined # For most configuration files from conf-available/, which are # enabled or disabled at a global level, it is possible to # include a line for only one particular virtual host. For example the # following line enables the CGI configuration for this host only # after it has been globally disabled with "a2disconf". #Include conf-available/serve-cgi-bin.conf# vim: syntax=apache ts=4 sw=4 sts=4 sr noet
4. 构建镜像
5. 拉取镜像:
docker pullregistry.cn-hangzhou.aliyuncs.com/imhou/php5:latest
6. 运行容器,映射端口和挂载文件夹,我这里的程序代码全部在/var/www/laravel 里面。
docker run -d -p 9989:80 -v /var/www/laravel:/var/www/htmlregistry.cn-hangzhou.aliyuncs.com/imhou/php5:latest
7. 如果程序里面用到了宿主机的地方,比如数据库是宿主机的,可以使用下面的命令查到容器的IP,从而知晓宿主机相对容器的IP
docker inspect
如果容器的IP 是 192.168.199.100,那对应的宿主机的IP就是192.168.199.1
就可以在代码配置里面,把相应的数据库服务器的地址改成192.168.199.1即可。