tomcat server是眼下比較流行的开源中间件server，以下介绍怎样使用 docker 来做一个 tomcat 数据库服务。官方的仓里没有标 OFFICIAL 的 tomcat 的镜像，只是 「tutum」的镜像做的很好，我们能够直接 pull 他们的镜像来完毕我们的操作。
core@localhost ~/base $ docker pull tutum/tomcat:8.0
Pulling repository tutum/tomcat
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core@localhost ~/base $ docker images
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
base/163 latest 468d347c06bc 22 hours ago 249.1 MB
test/supervisord latest 468d347c06bc 22 hours ago 249.1 MB
dl.dockerpool.com:5000/ubuntu 14.04 1357f421be38 4 days ago 192.7 MB
ubuntu 14.04 1357f421be38 4 days ago 192.7 MB
dl.dockerpool.com:5000/mysql 5.7 e95cbb9f48ea 6 days ago 258.6 MB
mysql 5.7 e95cbb9f48ea 6 days ago 258.6 MB
mysql latest 9a09222edf60 6 days ago 235.6 MB
tutum/tomcat 8.0 866eb07a675e 6 weeks ago 539.4 MB
core@localhost ~/base $ docker run -d -p 80:8080 tutum/tomcat:8.0
5a02ce457c875638bdc5a460206798cc12c3b8633a754a8745e6d1eda136ac99
core@localhost ~/base $ docker logs 5a0
=> Creating and admin user with a random password in Tomcat
=> Done!
========================================================================
You can now configure to this Tomcat server using:
admin:LfI5jMu2J8ZO
========================================================================
#从 logs 中能够看到tomcat的username与password
...
这样我们的tomcat服务就启动了
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