Locate persistenced and fabricmanager sockets at /run instead of /var/run

This chagne prefers (non-symlink) sockets at /run over /var/run for
nvidia-persistenced and nvidia-fabricmanager sockets.

Signed-off-by: Evan Lezar <elezar@nvidia.com>

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ## v1.13.0-rc.3
 
+* Prefer /run over /var/run when locating nvidia-persistenced and nvidia-fabricmanager sockets.
+
 ## v1.13.0-rc.2
 
 * Don't fail chmod hook if paths are not injected

internal/discover/ipc.go

@@ -25,21 +25,39 @@ type ipcMounts mounts
 
 // NewIPCDiscoverer creats a discoverer for NVIDIA IPC sockets.
 func NewIPCDiscoverer(logger *logrus.Logger, driverRoot string) (Discover, error) {
-	d := newMounts(
+	sockets := newMounts(
 		logger,
 		lookup.NewFileLocator(
 			lookup.WithLogger(logger),
 			lookup.WithRoot(driverRoot),
+			lookup.WithSearchPaths("/run", "/var/run"),
+			lookup.WithCount(1),
+		),
+		driverRoot,
+		[]string{
+			"/nvidia-persistenced/socket",
+			"/nvidia-fabricmanager/socket",
+		},
+	)
+
+	mps := newMounts(
+		logger,
+		lookup.NewFileLocator(
+			lookup.WithLogger(logger),
+			lookup.WithRoot(driverRoot),
+			lookup.WithCount(1),
 		),
 		driverRoot,
 		[]string{
-			"/var/run/nvidia-persistenced/socket",
-			"/var/run/nvidia-fabricmanager/socket",
 			"/tmp/nvidia-mps",
 		},
 	)
 
-	return (*ipcMounts)(d), nil
+	d := Merge(
+		(*ipcMounts)(sockets),
+		(*ipcMounts)(mps),
+	)
+	return d, nil
 }
 
 // Mounts returns the discovered mounts with "noexec" added to the mount options.