从零开始构建一个centos+jdk7+tomcat7的docker镜像文件

docker pull centos
或者直接下载我准备好的镜像
docker pull registry.cn-hangzhou.aliyuncs.com/repos_zyl/centos:0.0.1

rm -rf /z/docker/jdk/*src.zip     /z/docker/jdk/lib/missioncontrol     /z/docker/jdk/lib/visualvm     /z/docker/jdk/lib/*javafx*     /z/docker/jdk/jre/lib/plugin.jar     /z/docker/jdk/jre/lib/ext/jfxrt.jar     /z/docker/jdk/jre/bin/javaws     /z/docker/jdk/jre/lib/javaws.jar     /z/docker/jdk/jre/lib/desktop     /z/docker/jdk/jre/plugin     /z/docker/jdk/jre/lib/deploy*     /z/docker/jdk/jre/lib/*javafx*     /z/docker/jdk/jre/lib/*jfx*     /z/docker/jdk/jre/lib/amd64/libdecora_sse.so     /z/docker/jdk/jre/lib/amd64/libprism_*.so     /z/docker/jdk/jre/lib/amd64/libfxplugins.so     /z/docker/jdk/jre/lib/amd64/libglass.so     /z/docker/jdk/jre/lib/amd64/libgstreamer-lite.so     /z/docker/jdk/jre/lib/amd64/libjavafx*.so     /z/docker/jdk/jre/lib/amd64/libjfx*.so

cd /z/docker
vi Dockerfile

#插入以下内容
#使用的基础镜像
FROM registry.cn-hangzhou.aliyuncs.com/repos_zyl/centos:0.0.1
#作者信息
MAINTAINER yzzhouyalei "yzzhouyalei@foxmail.com"

#创建目录
RUN mkdir -p /z/java/jdk1.7.0_79
#把当前目录下的jdk文件夹添加到镜像
ADD jdk /z/java/jdk1.7.0_79

#创建tomcat目录
RUN mkdir -p /z/java/apache-tomcat-7.0.70
#把当前目录下的tomcat文件夹添加到镜像
ADD tomcat /z/java/apache-tomcat-7.0.70

#添加环境变量
ENV JAVA_HOME /z/java/jdk1.7.0_79
ENV CATALINA_HOME /z/java/apache-tomcat-7.0.70
ENV PATH $PATH:$JAVA_HOME/bin:$CATALINA_HOME/bin

#暴露8080端口
EXPOSE 8080

#启动时运行tomcat
CMD ["/z/java/apache-tomcat-7.0.70/bin/catalina.sh","run"]

docker build -t repos_local/centos-jdk7-tomcat7:0.0.1 .
-t 设置tag名称, 命名规则registry/image:tag
. 表示使用当前目录下的Dockerfile文件

[root@localhost docker]# docker images
REPOSITORY                                           TAG                 IMAGE ID            CREATED             SIZE
repos_local/centos-jdk7-tomcat7                      0.0.1               2c5efe7056ce        4 minutes ago       511.7 MB

docker run -d -p 8081:8080 --name test-tomcat repos_local/centos-jdk7-tomcat7:0.0.1
-d 后台运行
-p 宿主机port:容器port 端口映射
--name 容器名称, 可以通过容器名称对容器操作

#直接执行命令, 开放端口号(重启后可能失效)
iptables -A INPUT -ptcp --dport 8081 -j ACCEPT

##或者
#直接修改iptables, 重启后不会失效
vi /etc/sysconfig/iptables
#插入以下内容
-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 8081 -j ACCEPT
重启iptables服务
service iptables restart

#开放8081端口  permanent为永久开放
firewall-cmd --zone=public --add-port=8081/tcp --permanent
#重新读取配置
firewall-cmd --reload
#查看全部开放端口
firewall-cmd --list-all

[root@localhost docker]# docker ps
CONTAINER ID        IMAGE                                   COMMAND                  CREATED             STATUS              PORTS                    NAMES
1a49a277c235        repos_local/centos-jdk7-tomcat7:0.0.1   "/z/java/apache-tomca"   3 minutes ago       Up 3 minutes        0.0.0.0:8081->8080/tcp   test-tomcat

[root@localhost docker]# docker ps -a
CONTAINER ID        IMAGE                                   COMMAND                  CREATED             STATUS                       PORTS               NAMES
1a49a277c235        repos_local/centos-jdk7-tomcat7:0.0.1   "/z/java/apache-tomca"   47 hours ago        Exited (143) 3 minutes ago                       test-tomcat
[root@localhost docker]# docker start test-tomcat
test-tomcat
[root@localhost docker]# docker ps -a
CONTAINER ID        IMAGE                                   COMMAND                  CREATED             STATUS              PORTS                    NAMES
1a49a277c235        repos_local/centos-jdk7-tomcat7:0.0.1   "/z/java/apache-tomca"   47 hours ago        Up 3 seconds        0.0.0.0:8081->8080/tcp   test-tomcat
[root@localhost docker]# docker stop test-tomcat
test-tomcat
[root@localhost docker]# docker ps -a
CONTAINER ID        IMAGE                                   COMMAND                  CREATED             STATUS                       PORTS               NAMES
1a49a277c235        repos_local/centos-jdk7-tomcat7:0.0.1   "/z/java/apache-tomca"   47 hours ago        Exited (143) 4 seconds ago                       test-tomcat

[root@localhost docker]# docker ps -a
CONTAINER ID        IMAGE                                   COMMAND                  CREATED             STATUS              PORTS                    NAMES
1a49a277c235        repos_local/centos-jdk7-tomcat7:0.0.1   "/z/java/apache-tomca"   47 hours ago        Up 5 seconds        0.0.0.0:8081->8080/tcp   test-tomcat
[root@localhost docker]# docker rm -f test-tomcat
test-tomcat
[root@localhost docker]# docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
[root@localhost docker]#