Docker SSH+NGHINX+MYSQL

1、添加创建镜像的配置文件
      vim Dockerfile
      输入以下内容：

FROM jdeathe/centos-ssh
MAINTAINER baxk"xxx@honghe-tech.com"
RUN yum install -y openssh-server nginx mysql-server mysql supervisor
RUN sed -i 's/UsePAM yes/UsePAM no/g' /etc/ssh/sshd_config
RUN sed -i 's/PasswordAuthentication no/PasswordAuthentication yes/g' /etc/ssh/sshd_config
RUN sed -i 's/PermitRootLogin no/PermitRootLogin no/g' /etc/ssh/sshd_config
RUN yum -y update
RUN useradd admin
RUN echo "admin:admin" | chpasswd
RUN echo "root:123456" | chpasswd
RUN gpasswd -a admin root

RUN /etc/init.d/mysqld start &&\
mysql -e "grant all privileges on *.* to 'root'@'%' identified by 'root';"&&\
mysql -e "grant all privileges on *.* to 'root'@'localhost' identified by 'root';"&&\
mysql -u root -proot -e "show databases;"

RUN mkdir -p /var/log/supervisor
COPY supervisord.conf /etc/supervisord.conf

EXPOSE 22 80 3306
CMD ["/usr/bin/supervisord"]

2、添加容器启动的配置文件
     vim supervisord.conf
    输入以下内容：
#command 标示容器启动时，需要执行的命令
[supervisord]
nodaemon=true

[program:sshd]
command=/usr/sbin/sshd -D

[program:mysqld]
command=/usr/bin/mysqld_safe

[program:nginx]
command=/usr/sbin/nginx

3、创建镜像
      docker build -t my_centos .

4、docker run -d --name=my_centos -p 50001:22 -p 50002:3306 -p 8080:80 my_centos

5、通过ssh 登录容器
      ssh admin@localhost -p 50001
      密码为：admin

6、通过浏览器访问nginx
      localhost:8080

7、远程连接容器中的mysql
      mysql -h 0.0.0.0 -u root -P 50002 -p
      密码为：letmein
      # 0.0.0.0 为容器ip地址
      通过命令查看容器映射的ip地址
      root@xxx-All-Series:~/docker/centos# docker ps -a
CONTAINER ID        IMAGE                       COMMAND                CREATED             STATUS                   PORTS                                                                   NAMES
62d473045406        centos_nginx_test2:latest   /usr/bin/supervisord   55 minutes ago      Up 55 minutes             0.0.0.0:49153->22/tcp, 0.0.0.0:49154->3306/tcp, 0.0.0.0:49155->80/tcp   nginx2

docker可以支持把一个宿主机上的目录挂载到镜像里。

通过-v参数，冒号前为宿主机目录，必须为绝对路径，冒号后为镜像内挂载的路径

docker run -it -v /home/dock/Downloads:/usr/Downloads ubuntu64 /bin/bash

通过-v参数，冒号前为宿主机目录，必须为绝对路径，冒号后为镜像内挂载的路径

默认挂载的路径权限为读写。如果指定为只读可以用：ro

docker run -it -v /home/dock/Downloads:/usr/Downloads:ro ubuntu64 /bin/bash

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docker run -it -p 80:80 -v `pwd`/logs:/var/log/nginx dockerfile/nginx

这个命令会在当前目录下创建logs目录，存放access.log和error.log

docker run -it -p 80:80 -v `pwd`/www:/www -v `pwd`/config:/etc/nginx/sites-enabled -v `pwd`/logs:/var/log/nginx dockerfile/nginx

• -v pwd/www:/www，将当前路径下的www目录设置为/www，和server配置的路径对应
• -v pwd/config:/etc/nginx/sites-enabled，server文件的本地路径，映射到docker容器的nginx配置路径

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docker run --rm busybox sh -c 'ls /var/log/*'