I will summarize it as an output of Docker learning. This time about the capacity of Docker.
When using Docker, the capacity of the hard disk of the PC may be used up to tens of gigabytes. Even if you delete an image or container, Docker may not be able to free up space because it keeps grasping the capacity that should have been deleted.
You can free up space by following the steps below. At the terminal
docker system prune
You will be asked yes / no, so type yes and press Enter This is a command for cleaning garbage.
next Docker for Mac application Preference>Reset>Reset to factory defaults Select and reboot.
That's it.
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