1、准备镜像文件 tomcat压缩包，jdk压缩包
2、编写dockerfile文件，官方命名Dockerfile，build 会自动寻找这个文件，就不需要-f 指定了！
FROM centos:7 MAINTAINER xiaowei<2541341974@qq.com> COPY readme.txt /usr/local/readme.txt ADD apache-tomcat-9.0.62.tar.gz /usr/local/ ADD jdk-8u291-linux-x64.tar.gz /usr/local/ RUN yum -y install vim ENV MYPATH /usr/local WORKDIR /usr/local ENV JAVA_HOME /usr/local/jdk1.8.0_291 ENV CLASSPATH $JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar ENV CATALINA_HOME /usr/local/apache-tomcat-9.0.62 ENV CATALINA_BASE /usr/local/apache-tomcat-9.0.62 ENV PATH $PATH:$JAVA_HOME/bin:$CATALINA_HOME/lib:$CATALINA_HOME/bin EXPOSE 8080 CMD /usr/local/apache-tomcat-9.0.62/bin/startup.sh && tail -f /usr/local/apache-tomcat-9.0.62/logs/catalina.out
3、构建镜像
docker build -t dirtomcat .
4、启动镜像
docker run -d -p 9090:8080 --name xiaoweitomcat -v /root/tomcat/test:/usr/local/apache-tomcat-9.0.62/webapps/test -v /root/tomcat/tomcatlogs:/usr/local/apache-tomcat-9.0.62/logs diytomcat
5、访问测试
访问ip:9090，成功！
