實戰：DockerFile製作tomcat映象

step-1 準備映象檔案 tomcat壓縮包，jdk壓縮包！

step-2 編寫dockerfile檔案，官方命名Dockerfile，build會自動尋找這個檔案，就不需要-f指定了

[root@localhost tomcat]# vim Dockerfile 
FROM centos

MAINTAINER gelaotou<893450389@qq.com>

COPY readme.text /usr/local/readme.txt

ADD apache-tomcat-9.0.22.tar.gz /usr/local/
ADD jdk
 
-8u301-linux-x64.tar.gz /usr/local/

RUN yum -y install vim

ENV MYPATH /usr/local
WORKDIR $MYPATH

ENV JAVA_HOME /usr/local/jdk1.8.0_301
ENV CLASSPATH $JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
ENV CATALINA_HOME /usr/local/apache-tomcat-9.0.22
ENV CATALINA_BASH /usr/local/apache-tomcat-9.0.22
ENV PATH $PATH:$JAVA_HOME
 
/bin:$CATALINA_HOME/lib:$CATALINA_HOME/bin

EXPOSE 8080

CMD /usr/local/apache-tomcat-9.0.22/bin/startup.sh && tail -F /usr/local/apache-tomcat-9.0.22/bin/logs/catalina.out 

step-3 構建映象

[root@localhost tomcat]# docker build -t diytomcat .

step-4 啟動映象

[root@localhost tomcat]#docker run -d -p 9090:8080 --name gelaotoutomcat -v /home/gelaotou/build/tomcat/test:/usr/local/apache-tomcat-9.0
 
.22/webapps/test -v /home/gelaotou/build/tomcat/tomcatlogs:/usr/local/apache-tomcat-9.0.22/logs diytomcat

step-5 訪問映象

step-6 釋出專案（由於做了卷掛載，我們直接在本地編寫專案就可以釋出）