commit guide

docker commit guide

#run & enter container  
> docker run -t -i ubuntu /bin/bash  

#commit (not inside the docker)  
1. check container id by cmd$ docker ps  
2. commit  
> sudo docker commit [container ID] [fileName.tar]  
  
#save image  
1. check image name by cmd$ docker images -a  
2. save image(ubnsc)  
> sudo docker save ubnsc > ubnsc.tar  
3. check file.tar by cmd$ ls  
  
#for verification (outside the docker)  
1. check imageID by cmd$ docker images -a  
> sudo docker rmi -f [ImageID]  
if error as "image has dependent child images", del the base image first  
  
2. load image from file.tar  
> sudo docker load < file.tar  
  
3.check images by cmd$ docker images -a  
> sudo docker load < file.tar