1.重命名镜像名
[root@izwz9dvcgvpdsfoxeel76ez ~]# docker tag 500b941e6f79 tomcat7:jre7
[root@izwz9dvcgvpdsfoxeel76ez ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
tomcat7 jre7 500b941e6f79 2 days ago 338MB
tomcat 7 d806926ff467 5 days ago 357MB
openjdk 7-jre c324c062541b 5 days ago 329MB
centos 6 0cbf37812bff 12 days ago 194MB
centos 7 75835a67d134 12 days ago 200MB
2.重命名容器名
dokcer rename 容器ID mytomcat7:jre7