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Explicitly set ldconfig cache and config file

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Since the `update-ldcache` hook uses the host's `ldconfig`, the default
cache and config files configured on the host will be used. If those
defaults differ from what nvidia-ctk expects it to be (/etc/ld.so.cache
and /etc/ld.so.conf, respectively), then the hook will fail. This change
makes the call to ldconfig explicit in which cache and config files are
being used.

Signed-off-by: Jared Baur <jaredbaur@fastmail.com>
This commit is contained in:
Jared Baur 2023-12-14 16:49:55 -08:00
parent 838493b8b9
commit d80657dd0a
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1 changed files with 9 additions and 3 deletions
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12
cmd/nvidia-ctk/hook/update-ldcache/update-ldcache.go
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@ -100,21 +100,27 @@ func (m command) run(c *cli.Context, cfg *options) error {
args = append(args, "-r", containerRoot)
}
if !root(containerRoot).hasPath("/etc/ld.so.cache") {
if root(containerRoot).hasPath("/etc/ld.so.cache") {
args = append(args, "-C", "/etc/ld.so.cache")
} else {
m.logger.Debugf("No ld.so.cache found, skipping update")
args = append(args, "-N")
}
folders := cfg.folders.Value()
if root(containerRoot).hasPath("/etc/ld.so.conf.d") {
err = m.createConfig(containerRoot, folders)
err := m.createConfig(containerRoot, folders)
if err != nil {
return fmt.Errorf("failed to update ld.so.conf: %v", err)
return fmt.Errorf("failed to update ld.so.conf.d: %v", err)
}
} else {
args = append(args, folders...)
}
// Explicitly specify using /etc/ld.so.conf since the host's ldconfig may
// be configured to use a different config file by default.
args = append(args, "-f", "/etc/ld.so.conf")
//nolint:gosec // TODO: Can we harden this so that there is less risk of command injection
return syscall.Exec(ldconfigPath, args, nil)
}