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# Access to devices on the host
If you need to directly expose some host devices to a container, you can use
the devices parameter in the `host_config` param in `Client.create_container`
as shown below:
```python
cli.create_container(
'busybox', 'true', host_config=cli.create_host_config(devices=[
'/dev/sda:/dev/xvda:rwm'
])
)
```
Each string is a single mapping using the colon (':') as the separator. So the
above example essentially allow the container to have read write permissions to
access the host's /dev/sda via a node named /dev/xvda in the container. The
devices parameter is a list to allow multiple devices to be mapped.
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