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NVIDIA CDI Hook
The CLI nvidia-cdi-hook provides container device runtime hook capabilities when
called by a container runtime, as specific in a
Container Device Interface
file.
Generating a CDI
The CDI itself is created for an NVIDIA-capable device using the
nvidia-ctk cdi generate command.
When nvidia-ctk cdi generate is run, the CDI specification is generated as a yaml file.
The CDI specification provides instructions for a container runtime to set up devices, files and
other resources for the container prior to starting it. Those instructions
may include executing command-line tools to prepare the filesystem. The execution
of such command-line tools is called a hook.
nvidia-cdi-hook is the CLI tool that is expected to be called by the container runtime,
when specified by the CDI file.
See the nvidia-ctk documentation for more information
on generating a CDI file.
Functionality
The nvidia-cdi-hook CLI provides the following functionality:
chmod- Change the permissions of a file or directory inside the directory path to be mounted into a container.create-symlinks- Create symlinks inside the directory path to be mounted into a container.update-ldcache- Update the dynamic linker cache inside the directory path to be mounted into a container.