For legacy images (images with a CUDA_VERSION set but no CUDA_REQUIRES set), the
default behaviour for device envvars is to treat non-existence as all.
This change ensures that the NVIDIA_IMEX_CHANNELS envvar is not treated in the same
way, instead returning no devices if the envvar is not set.
Signed-off-by: Evan Lezar <elezar@nvidia.com>
This change allows IMEX channels to be requested using the
volume mount mechanism.
A mount from /dev/null to /var/run/nvidia-container-devices/imex/{{ .ChannelID }}
is equivalent to including {{ .ChannelID }} in the NVIDIA_IMEX_CHANNELS
envvironment variables.
Signed-off-by: Evan Lezar <elezar@nvidia.com>
This change allows CDI devices to be requested as mounts in the
container. This enables their use in environments such as kind
where environment variables or annotations cannot be used.
Signed-off-by: Evan Lezar <elezar@nvidia.com>
This change adds a CUDA image abstraction that encapsulates
the queries performed on a container image (e.g. envvars) to
check certain CUDA properties.
Signed-off-by: Evan Lezar <elezar@nvidia.com>
