Docker 启动Tomcat，访问首页出现404错误

Docker 启动Tomcat，访问首页出现404错误

1. 使用命令: docker exec -it 运行的tomcat容器ID /bin/bash 进入到tomcat的目录
2. 进入webapps文件夹,发现里面是空的(tomcat默认的欢迎页面实际上放在的路径应该是:webapps/ROOT/index.jsp或者index.html)
3. 发现旁边还有个webapps.dist的文件,进入才发现原本应该在webapps文件中的文件都在webapps.dist文件中
4. 通过下面的命令修改相关文件的名称，使得Tomcat首页能够成功访问

[root@localhost jinjia523]# docker ps
CONTAINER ID   IMAGE     COMMAND             CREATED          STATUS          PORTS                    NAMES
f7ddfece26dd   tomcat    "catalina.sh run"   39 seconds ago   Up 38 seconds   0.0.0.0:8080->8080/tcp   mytomacat
[root@localhost jinjia523]# docker exec -it f7ddfece26dd /bin/bash
root@f7ddfece26dd:/usr/local/tomcat# ls
BUILDING.txt  CONTRIBUTING.md  LICENSE	NOTICE	README.md  RELEASE-NOTES  RUNNING.txt  bin  conf  lib  logs  native-jni-lib  temp  webapps  webapps.dist  work
root@f7ddfece26dd:/usr/local/tomcat# mv webapps webapps2
root@f7ddfece26dd:/usr/local/tomcat# mv webapps.dist webapps
root@f7ddfece26dd:/usr/local/tomcat# ls
BUILDING.txt  CONTRIBUTING.md  LICENSE	NOTICE	README.md  RELEASE-NOTES  RUNNING.txt  bin  conf  lib  logs  native-jni-lib  temp  webapps  webapps2  work