1、准备镜像文件tomcat压缩包，jdk的压缩包
tomcat链接：https://pan.baidu.com/s/1Xpecb-BSGR2sdxSL7FDtBw?pwd=1234
提取码：1234
jdk链接：https://pan.baidu.com/s/1mQHInn27j1I9uuuicBsyAA?pwd=1234
提取码：1234
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 wq<123456@qq.com>COPY readme.txt /usr/local/readme.txtADD jdk-8u131-linux-x64.tar.gz /usr/local/
ADD apache-tomcat-9.0.75.tar.gz /usr/local/RUN yum install -y vim net-toolsENV MYPATH /usr/local
WORKDIR $MYPATHENV JAVA_HOME /usr/local/jdk1.8.0_131
ENV CLASSPATH $JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
ENV CATALINA_HOME /usr/local/apache-tomcat-9.0.75
ENV CATALINA_BASH /usr/local/apache-tomcat-9.0.75
ENV PATH $PATH:$JAVA_HOME/bin:$CATALINA_HOME/lib:$CATALINA_HOME/binEXPOSE 8080CMD /usr/local/apache-tomcat-9.0.75/bin/startup.sh && tail -F /usr/local/apache-tomcat-9.0.75/bin/logs/catalina.out3、构建镜像
[root@wq tomcat]# docker build -t diytomcat .
[+] Building 0.5s (11/11) FINISHED docker:default=> [internal] load build definition from Dockerfile 0.0s=> => transferring dockerfile: 681B 0.0s=> [internal] load .dockerignore 0.0s=> => transferring context: 2B 0.0s=> [internal] load metadata for docker.io/library/centos:7 0.2s=> [1/6] FROM docker.io/library/centos:7@sha256:9d4bcbbb213dfd745b58be38b13b996ebb5ac315fe75711bd618426a630e 0.0s=> [internal] load build context 0.0s=> => transferring context: 126B 0.0s=> CACHED [2/6] COPY readme.txt /usr/local/readme.txt 0.0s=> CACHED [3/6] ADD jdk-8u131-linux-x64.tar.gz /usr/local/ 0.0s=> CACHED [4/6] ADD apache-tomcat-9.0.75.tar.gz /usr/local/ 0.0s=> CACHED [5/6] RUN yum install -y vim net-tools 0.0s=> CACHED [6/6] WORKDIR /usr/local 0.0s=> exporting to image 0.0s=> => exporting layers 0.0s=> => writing image sha256:dfa3156617fc4cc29fa298858eaf09dab87afaa5364b7cca8423940957794fad 0.0s=> => naming to docker.io/library/diytomcat 0.0s[root@wq tomcat]# docker images |grep diytomcat
diytomcat latest dfa3156617fc 23 minutes ago 893MB4、启动镜像
[root@wq tomcat]# docker images |grep diytomcat
diytomcat latest dfa3156617fc 23 minutes ago 893MB
[root@wq tomcat]# docker run -d -p 8040:8080 --name my_tomcat -v /home/wq/tomcat/test:/usr/local/apache-tomcat-9.0.75/webapps/test -v /home/wq/tomcat/tomcat_logs/:/usr/local/apache-tomcat-9.0.75/logs diytomcat
9624ae479e00fdcf54ab047de0e14a9d48d31edde940650e74b9d4b26fe1d160
[root@wq tomcat]#
[root@wq tomcat]# docker ps |grep my_tomcat
9624ae479e00 diytomcat "/bin/sh -c '/usr/lo…" 13 seconds ago Up 12 seconds 0.0.0.0:8040->8080/tcp, :::8040->8080/tcp my_tomcat5、访问测试
虚拟机需要关闭防火墙，服务器需要允许8040端口通过安全组
[root@wq test]# curl localhost:8040<!DOCTYPE html>
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6、发布项目（由于做了卷挂载，可以直接在本地编写项目就可以发布了！）
