Dockerfile

运行一个ubuntu容器

docker run -i -t ubuntu /bin/bash

备份apt源

cp /etc/apt/sources.list /etc/apt/sources.list.bak

修改apt源

vi /etc/apt/sources.list

替换所有源为sohu源

deb http://mirrors.sohu.com/ubuntu/ trusty main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ trusty-security main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ trusty-updates main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ trusty main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ trusty-backports main restricted universe multiverse

或网易源

deb http://mirrors.163.com/ubuntu/ trusty-security main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ trusty-updates main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ trusty main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ trusty-backports main restricted universe multiverse

修改保存后退出运行的容器

exit

查看最后一个运行的容器

docker ps -l

提交本次修改的镜像为 ubuntu/sohu

docker commit 698 ubuntu/sohu

使用修改后源的镜像做Dockerfile

# VERSION 0.0.1

FROM ubuntu/sohu

MAINTAINER myemail "myemail@gmail.com"

RUN apt-get update
RUN apt-get install -y openssh-server
RUN mkdir -p /var/run/sshd

RUN echo "root:123456" | chpasswd
#RUN sed -i 's/PermitRootLogin without-password/PermitRootLogin yes/' /etc/ssh/sshd_config
RUN sed -i "s/UsePrivilegeSeparation.*/UsePrivilegeSeparation no/g" /etc/ssh/sshd_config

RUN apt-get install python-software-properties 
RUN add-apt-repository ppa:webupd8team/java 
RUN apt-get update 
RUN apt-get install -y vim wget curl oracle-java7-installer tomcat7 
RUN update-alternatives --display java 
RUN echo "JAVA_HOME=/usr/lib/jvm/java-7-oracle">> /etc/environment 
RUN echo "JAVA_HOME=/usr/lib/jvm/java-7-oracle">> /etc/default/tomcat7 

EXPOSE 22 
EXPOSE 8080 

ENTRYPOINT service tomcat7 start && /usr/sbin/sshd -D

需要注意：

1. ENTRYPOINT，表示镜像在初始化时需要执行的命令，不可被重写覆盖，需谨记
2. CMD，表示镜像运行默认参数，可被重写覆盖
3. ENTRYPOINT/CMD都只能在文件中存在一次，并且最后一个生效 多个存在，只有最后一个生效，其它无效！
4. 需要初始化运行多个命令，彼此之间可以使用 && 隔开，但最后一个须要为无限运行的命令，需切记！

构建镜像

#. 代表Dockerfile在当前路径下
docker build -t shawn/ssh .

启动新建的容器

 docker run -d -p 22 -p 8080:8080 saint/ssh

 登录ssh镜像

docker ps -a

CONTAINER ID        IMAGE                 COMMAND                CREATED             STATUS                      PORTS                   NAMES
789c45a53c6f        shawn/ssh:latest      "/bin/sh -c '/usr/sb   8 seconds ago       Up 7 seconds                0.0.0.0:49153->22/tcp   furious_pare        
eb738292efd9        ubuntu/ssh:latest     "/bin/bash"            6 minutes ago       Exited (0) 5 minutes ago                            focused_yonath      
4a714065db9a        ubuntu/proxy:latest   "/bin/bash"            15 minutes ago      Exited (0) 7 minutes ago                            boring_goldstine    
28491e2dec96        ubuntu:latest         "/bin/bash"            2 hours ago         Exited (2) 17 minutes ago                           berserk_fermat      
4f23b24e247a        6311975ede96          "/bin/sh -c 'apt-get   2 hours ago         Exited (100) 2 hours ago                            sleepy_lalande 

登录容器

ssh root@127.0.0.1 -p 49153

停止所有容器

docker stop $(docker ps -a -q)

Dockerflie run tomcat

#tomcat java7 installed
FROM saint/java

MAINTAINER saintaxl "saintaxl@gmail.com"

VOLUME ["/opt"]

EXPOSE 8080

ENV JAVA_HOME /usr/local/jdk1.7.0_67

ENTRYPOINT /usr/local/tomcat7/bin/startup.sh && tail -f /usr/local/tomcat7/logs/catalina.out

构建镜像

docker build -t saint/runtomcat .

运行容器

#前台运行
docker run --rm -p 8080 saint/runtomcat
#后台运行
docker run -d -p 8080:8080 saint/runtomcat

浏览器访问

#宿主机IP:端口
http://192.168.124.129:8080/

http://www.blogjava.net/yongboy/archive/2013/12/16/407643.html

Dockerfile 命令解释

http://blog.tankywoo.com/docker/2014/05/08/docker-2-dockerfile.html

Docker 笔记

http://fann.im/blog/2014/02/11/docker-notes/

查找apt软件

apt-cache search tomcat