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【Docker】build失敗したイメージをまとめて消す

Last updated at Posted at 2017-02-04

状況

docker buildをしまくっていると

$ docker images
REPOSITORY                   TAG                 IMAGE ID            CREATED             SIZE
<none>                       <none>              297d5f942b3d        6 minutes ago       400 MB
dockercomposedev_db          latest              022c5bd2184e        8 minutes ago       400 MB
<none>                       <none>              7dd230c58bd5        18 minutes ago      400 MB
<none>                       <none>              71c356015e59        27 minutes ago      400 MB
dockercomposedev_web         latest              ba78760c2a64        55 minutes ago      995 MB
dockercomposedev_composer    latest              24ccc18fed40        55 minutes ago      974 MB
<none>                       <none>              ad01480e1b50        55 minutes ago      405 MB
<none>                       <none>              5a177d6ea178        6 days ago          800 MB
<none>                       <none>              cbe98a41a9a0        6 days ago          800 MB
<none>                       <none>              9a0d86d1cdbd        6 days ago          862 MB
<none>                       <none>              44e5700ca5c0        7 days ago          704 MB
<none>                       <none>              2a7cd690ac25        7 days ago          704 MB
<none>                       <none>              f08bf01212e5        7 days ago          704 MB
<none>                       <none>              f28e283f4316        7 days ago          704 MB
<none>                       <none>              85ae7bb228c0        7 days ago          704 MB
<none>                       <none>              2e8b46a20e74        7 days ago          704 MB
<none>                       <none>              efaaff2b1318        7 days ago          704 MB

みたいなことが起こってしまうことがある。
こんな時の対処法

下記コマンドで一掃しよう

docker images | grep '<none>' | awk '{print $3}' | xargs docker rmi

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