从容器创建新镜像:docker commit
备份/恢复镜像:docker save + docker load
将容器直接导出为tar包/导入:docker export + docker import
docker commit
操作的是容器。从容器创建新镜像
https://docs.docker.com/engine/reference/commandline/commit/
cuiwei@weideMacBook-Pro server % docker ps
CONTAINER ID ...