说明：使用Centos及jdk1.7、tomcat7.0制作基础镜像。baseos:1.0中主要为了调整时区

注意在启动容器时，指定端口映射-p 8080:8080

一：首先创建空白的centos基础镜像

docker pull cetos

docker tag cetos:latest centos:base

二：目录结构如下

[root@iZ28bi7khfvZ laughing]# ls
baseos jdktomcat
[root@iZ28bi7khfvZ laughing]# pwd
/laughing
[root@iZ28bi7khfvZ laughing]# ls
baseos jdktomcat

三：在baseos文件夹下创建Dockerfile，并制作镜像

[root@iZ28bi7khfvZ laughing]# cd baseos/
[root@iZ28bi7khfvZ baseos]# ls
Dockerfile
[root@iZ28bi7khfvZ baseos]# cat Dockerfile
#Baseosimage
From centos:base
MAINTAINER Laughing_Lz 645596034@qq.com
LABEL Description=”this image is the baseos image.” Version=”1.0″
ENV TIME_ZONE Asia/Shanghai
RUN cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime && \
echo ‘Asia/Shanghai’ >/etc/timezone

制作镜像如下：

docker build -t base:1.0 .

四：在jdktomcat文件夹下创建Dockerfile，内容如下

[root@iZ28bi7khfvZ laughing]# cd jdktomcat/
[root@iZ28bi7khfvZ jdktomcat]# ls
apache-tomcat-7.0.88.tar.gz Dockerfile jdk-7u79-linux-x64.tar.gz
[root@iZ28bi7khfvZ jdktomcat]# cat Dockerfile
From base:1.0
MAINTAINER Laughing_Lz 645596034@qq.com

ADD jdk-7u79-linux-x64.tar.gz /usr/local
ADD apache-tomcat-7.0.88.tar.gz /usr/local

ENV JAVA_HOME /usr/local/jdk1.7.0_79
ENV CLASSPATH $JAVA_HOME/lib /dt.jar:$JAVA_HOME/lib/tools.jar
ENV CATALINA_HOME /usr/local/apache-tomcat-7.0.88
ENV CATALINA_BASE /usr/local/apache-tomcat-7.0.88
ENV PATH $PATH:$JAVA_HOME/bin:$CATALINA_HOME/lib:$CATALINA_HOME/bin

EXPOSE 8080

CMD [ “/usr/local/apache-tomcat-7.0.88/bin/catalina.sh”, “run” ]

五：以第四步的Dockerfile及tomcat和jdk的安装包制作镜像

docker build -t base:jdktomcat .

六：以第五步制作的镜像启动容器

docker run -d -p 8080:8080 –name=”zero” base:jdktomcat

七：进入容器查看：

docker exec -it  [ContainID] /bin/bash