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Merge pull request #6854 from tomfotherby/patch-1

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Add documention on how to Mount a Host File as a Data Volume
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Sven Dowideit 2014-07-10 10:29:15 +00:00
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docs/sources/userguide/dockervolumes.md
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@ -71,6 +71,24 @@ read-only.
Here we've mounted the same `/src/webapp` directory but we've added the `ro`
option to specify that the mount should be read-only.
### Mount a Host File as a Data Volume
The `-v` flag can also be used to mount a single file - instead of *just*
directories - from the host machine.
$ sudo docker run --rm -it -v ~/.bash_history:/.bash_history ubuntu /bin/bash
This will drop you into a bash shell in a new container, you will have your bash
history from the host and when you exit the container, the host will have the
history of the commands typed while in the container.
> **Note:**
> Many tools used to edit files including `vi` and `sed --in-place` may result
> in an inode change. Since Docker v1.1.0, this will produce an error such as
> "*sed: cannot rename ./sedKdJ9Dy: Device or resource busy*". In the case where
> you want to edit the mounted file, it is often easiest to instead mount the
> parent directory.
## Creating and mounting a Data Volume Container
If you have some persistent data that you want to share between