docker 制作tomcat镜像

• 需要下载tomcat安装包和jdk安装包，我这边下载的jdk版本分别为（jdk和tomcat版本需要对应上）

    apache-tomcat-9.0.78.tar.gz
    jdk-8u381-linux-x64.tar.gz

• 创建一个readme.txt空文件

    readme.txt

• 创建一个Dockerfile文件

# centos系统作为底层
FROM centos
# 作者信息及邮箱
MAINTAINER zrf<1213455555.163.com># 将readme.txt复制到容器的/usr/local/readme.txt
COPY readme.txt /usr/local/readme.txt
# 添加两个压缩包到 /usr/local之中，会自动解压缩
ADD jdk-8u381-linux-x64.tar.gz /usr/local
ADD apache-tomcat-9.0.78.tar.gz /usr/local

RUN cd /etc/yum.repos.d/

RUN sed-i's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*

RUN sed-i's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*

RUN yum -yinstallwget

RUN wget-O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo \&& yum clean all \&& yum makecache

RUN yum -yinstallvim
RUN yum -yinstallvim

ENV MYPATH /usr/local
# 设置工作目录
WORKDIR $MYPATH# 配置jdk环境变量
ENV JAVA_HOME /usr/local/jdk1.8.0_381
ENV CLASSPATH $JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar

# 配置tomcat环境变量
ENV CATALINA_HOME /usr/local/apache-tomcat-9.0.78
ENV CATALINA_BASE /usr/local/apache-tomcat-9.0.78
ENV PATH$PATH:$JAVA_HOME/bin:$CATALINA_HOME/lib:$CATALINA_HOME/bin/

# 暴露端口
EXPOSE 8080# 执行命令
CMD /usr/local/apache-tomcat-9.0.78/bin/startup.sh &&tail-F /usr/local/apache-tomcat-9.0.78/bin/logs/catalina.out

• 构建镜像

docker build  -t  mytomcat:1.0 .

• 查看镜像

docker images

• 创建容器并启动容器

docker run -it-d-p8080:8080 镜像id