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sot528
sot528

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Remove unnecessary Docker resources.

#docker

Problem

Using Docker for Mac long time uses large storage spaces.

sot-mbp:clean_docker_resources sot528$ docker system df
TYPE                TOTAL               ACTIVE              SIZE                RECLAIMABLE
Images              152                 2                   37.57GB             35.79GB (95%)
Containers          4                   0                   35.8MB              35.8MB (100%)
Local Volumes       4                   0                   7.118MB             7.118MB (100%)
Build Cache         0                   0                   0B                  0B
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Solution 

docker system prune
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Then, SIZE is be around 30GB.
And remove old images without recent 10 images.

docker rmi -f $(docker images | sed -n '10,$p')
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Result

Good!

sot-mbp:clean_docker_resources sot528$ docker system df
TYPE                TOTAL               ACTIVE              SIZE                RECLAIMABLE
Images              7                   0                   5.337GB             5.337GB (100%)
Containers          0                   0                   0B                  0B
Local Volumes       4                   0                   7.118MB             7.118MB (100%)
Build Cache         0                   0                   0B                  0B
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Environment

  • macOS Mojave 10.14.3（18D109）
  • Docker version 18.09.2, build 6247962

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