docker commit ContainerName ContainerName:Tag How to create image from container. It created 'commit_test:first' image. $ docker run -i -t --name commit_test ubuntu:14.04 //Create ubuntu container root@ac71ee960c10:/# echo test_first! >>first $ docker commit commit_test commit_test:first //Create 'commit_test:first'image sha256:e87f81e9b28ac369d9284d1b066219caed0ca22ce4539efb6825a9883257bdc4 $ d..