This change adds a driver root abstraction that defines how
libraries are located relative to the root. This allows for
this driver root to be constructed once and passed to discovery
code.
Signed-off-by: Evan Lezar <elezar@nvidia.com>
Instead of relying solely on a static config, we resolve the path
to ldconfig. The path is checked for existence and a .real suffix is preferred.
Signed-off-by: Evan Lezar <elezar@nvidia.com>
This change renames NewGraphicsDiscoverer to NewDRMNodesDiscoverer and
instead calls NewGraphicsMountsDiscoverer explicitly when constructing
a graphics modifier.
This avoids the import of config.Config into the discover package
which leads to a transitive dependency on toml-specifics and
requires that the vendor/github.com/pelletier/ package
be vendored in to consumers.
Signed-off-by: Evan Lezar <elezar@nvidia.com>
A driverRoot defines both the driver library root and the
root for device nodes. In the case of preinstalled drivers or
the driver container, these are equal, but in cases such as GKE
they do not match. In this case, drivers are extracted to a folder
and devices exist at the root /.
The changes here add a devRoot option to the nvcdi API that allows the
parent of /dev to be specified explicitly.
Signed-off-by: Evan Lezar <elezar@nvidia.com>
In some cases we might get a permission error trying to chmod -
most likely this is due to something beyond our control
like whole `/dev` being mounted.
Do not fail container creation in this case.
Due to loosing control of the program after `exec()`-ing `chmod(1)` program
and therefore not being able to handle errors -
refactor to use `chmod(2)` syscall instead of `exec()` `chmod(1)` program.
Fixes: #143
Signed-off-by: Ievgen Popovych <jmennius@gmail.com>
This change skips the update of ld.cache in the container if it
doesn't exist. Instead, the -N flag is used to only create the
relevant symlinks.
Signed-off-by: Evan Lezar <elezar@nvidia.com>
Since we allow pattern inputs for locating symlinks we could have
multiples. The error being checked is resolved by the deduplication.
Signed-off-by: Evan Lezar <elezar@nvidia.com>
These changes make library lookups more robust. The core change is that
library lookups now first look a set of predefined locations before checking
the ldcache. This also handles cases where an ldcache is not available more
gracefully.
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>
