The proposed "netdevices" field provides a declarative way to
specify which host network devices should be moved into a container's
network namespace.

This approach is similar than the existing "devices" field used for block
devices but uses a dictionary keyed by the interface name instead.

The proposed scheme is based on the existing representation of network
device by the `struct net_device`
https://docs.kernel.org/networking/netdevices.html.

This proposal focuses solely on moving existing network devices into
the container namespace. It does not cover the complexities of
network configuration or network interface creation, emphasizing the
separation of device management and network configuration.

Signed-off-by: Antonio Ojea <[email protected]>

Signed-off-by: Antonio Ojea <[email protected]>

Signed-off-by: Antonio Ojea <[email protected]>

Signed-off-by: Antonio Ojea <[email protected]>

Signed-off-by: Antonio Ojea <[email protected]>