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        <description>Dockerfile 사용하기

사전지식

	*  Dockfile 을 사용한다는 것은 도커 이미지를 다운받아 설치되어 있어야 한다.

간단 사용법

	*  ubuntu 이미지를 다운로드 받는다 

$ docker pull ubuntu
$ docker images</description>
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        <description>&lt;none&gt; tag 도커 이미지 삭제하기

 docker images -f dangling=true -q 

 docker rmi $(docker images -f “dangling=true” -q) 

명령어
 docker container prune  중지된 모든 컨테이너를 삭제  docker image prune  이름 없는 모든 이미지를 삭제</description>
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