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Add U volume flag to chown source volumes

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Signed-off-by: Eduardo Vega <edvegavalerio@gmail.com>
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Eduardo Vega
2021-01-05 19:50:58 -06:00
parent 96fc9d983e
commit 874f2327e6
12 changed files with 270 additions and 8 deletions
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docs/source/markdown/podman-create.1.md
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@ -1036,6 +1036,7 @@ The _options_ is a comma delimited list and can be:
* [**no**]**dev**
* [**no**]**suid**
* [**O**]
* [**U**]
The `CONTAINER-DIR` must be an absolute path such as `/src/docs`. The volume
will be mounted into the container at this directory.
@ -1065,6 +1066,14 @@ You can add `:ro` or `:rw` suffix to a volume to mount it read-only or
read-write mode, respectively. By default, the volumes are mounted read-write.
See examples.
`Chowning Volume Mounts`
By default, Podman does not change the owner and group of source volume directories mounted into containers. If a container is created in a new user namespace, the UID and GID in the container may correspond to another UID and GID on the host.
The `:U` suffix tells Podman to use the correct host UID and GID based on the UID and GID within the container, to change recursively the owner and group of the source volume.
**Warning** use with caution since this will modify the host filesystem.
`Labeling Volume Mounts`
Labeling systems like SELinux require that proper labels are placed on volume