docker commit镜像

commit镜像

docker commint #提交容器成为一个新的副本
docker commit -m="提交的描述信息" -a="作者" 容器id 目标镜像名:[TAG]

测试:
#启动一个默认的tomcat(里面没有webapps)
[root@localhost ~]# docker run -it tomcat /bin/bash
#自己拷贝到webapps进去
root@c2c2128e878d:/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@c2c2128e878d:/usr/local/tomcat# cp -r webapps.dist/ webapps
root@c2c2128e878d:/usr/local/tomcat# cd webapps
root@c2c2128e878d:/usr/local/tomcat/webapps# ls
webapps.dist
root@c2c2128e878d:/usr/local/tomcat/webapps# exit
exit
#创建commit镜像
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE     COMMAND       CREATED              STATUS                      PORTS     NAMES
c2c2128e878d   tomcat    "/bin/bash"   About a minute ago   Exited (0) 37 seconds ago             epic_chandrasekhar
[root@localhost ~]# docker commit -a="sunrui" -m="add tomcat app" c2c2128e878d tomcat2:1.0
sha256:1445a5b931d04ce8e863826b3160b45270138a166fa366f66c01c5aa50185bc0
[root@localhost ~]# docker images
REPOSITORY   TAG       IMAGE ID       CREATED              SIZE
tomcat2      1.0       1445a5b931d0   About a minute ago   689MB
tomcat       latest    5cae83f90298   33 hours ago         685MB