25 lines
723 B
Markdown
25 lines
723 B
Markdown
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# Move Docker program data
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Docker stores all its data in `/var/lib/docker` by default. This is usually fine, but this directory grows quickly, so we'll move it to `/mnt/big-stuff/docker-program-data/`
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Edit `/lib/systemd/system/docker.service` and add the `--data-root` option to the ExecStart line:
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```sh
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ExecStart=/usr/bin/dockerd --data-root /mnt/big-stuff/docker-program-data/ -H fd:// $DOCKER_OPTS
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```
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If you've already done stuff with docker, you'll need to move the data:
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```sh
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sudo systemctl stop docker
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sudo mv /var/lib/docker/ /mnt/big-stuff/docker-program-data/
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sudo systemctl daemon-reload
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sudo systemctl start docker
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```
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You may also need to set up some symlinks:
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```bash
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ln -s source_file link_file
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```
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