我运行启动tomcat8服务器的docker镜像，但它没有启动 [英] I run the docker images which start tomcat8 server but it don't start

问题描述

我有docker图像，我是用docker文件创建的。当我运行图像时，它能够运行tomcat服务器，然后命令提示符返回。这意味着该过程终止，我认为容器停止。因此，当我看到 http：// localhost：8080 时，不会显示tomcat页面。所以我无法找到实际的问题所在。我实际上试图构建自定义java8，tomcat8和maven作为环境，我想在该tomcat服务器中部署我的maven项目。
Bellow是用于创建图像的Dockerfile

I have docker image which I create from my docker file. When I run the image it has able to run the tomcat server then the command prompt come back. That mean the process is terminated and I think the container stops. So when I see http://localhost:8080 no tomcat page is appear. So I am not able find actual what is the problem. I am actually trying to to build custom java8, tomcat8 and maven as environment and I want to deploy my maven project in that tomcat server. Bellow is the Dockerfile to create image

FROM scratch
FROM ubuntu:16.04

RUN mkdir /opt/java8
RUN mkdir /opt/tomcat8
RUN mkdir /opt/maven3

ENV JAVA_HOME /opt/java8
ENV CATALINA_HOME /opt/tomcat8
ENV M2_HOME /opt/maven3

ENV PATH $PATH:$JAVA_HOME/bin:$CATALINA_HOME/bin:$M2_HOME/bin

ADD jdk1.8.0_112 /opt/java8
ADD apache-tomcat-8.0.38 /opt/tomcat8
ADD apache-maven-3.3.9 /opt/maven3

EXPOSE 8080

CMD ["startup.sh", "run"]

我把3，java文件夹，tomcat，maven附近的Docker文件，所以添加它们。

I put 3 folder of java, tomcat, maven near Docker file so those are added.

现在，当我构建图像并运行图像时，会出现波纹管日志。

Now when I build the image and run the image the bellow log appear.

root@dhavalbhoot:/home/veni/Documents/dhaval_bhoot/docker_images/tomcat1#
  docker run -it -p 8080:8080 dhaval/tomcat:8.0.38

输出：

Using CATALINA_BASE:   /opt/tomcat8
Using CATALINA_HOME:   /opt/tomcat8
Using CATALINA_TMPDIR: /opt/tomcat8/temp
Using JRE_HOME:        /opt/java8
Using CLASSPATH:       
  \#/opt/tomcat8/bin/bootstrap.jar:/opt/tomcat8/bin/tomcat-juli.jar
Tomcat started.

root@dhavalbhoot:/home/veni/Documents/dhaval_bhoot/docker_images/tomcat1#

这样提示就会回来，我在浏览器中查看 http：// localhost：8080
tomcat页面没有出现
所以帮我解决问题。

This way the prompt come back and I check in browser http://localhost:8080 tomcat page not appear So help me solving the problem.

推荐答案

类似的 docker官方tomcat图像（8.0.40）运行：

CMD ["catalina.sh", "run"]

使用 catalina.sh在前台启动tomcat ：流程赢了t立即退出。

如果tomcat安装包含该脚本，则应使用它或 startup.sh 。

With catalina.sh made to start tomcat in the foreground: the process won't exit immediately.
If you tomcat installation does include that script, you should use it instead or startup.sh.

或直接运行tomcat图像进行测试：

Or run directly a tomcat image for testing:

$ docker run -it --rm -p 8080:8080 tomcat:8.0

您可以访问进行测试http：// container-ip：8080 在浏览器中

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