Return an empty imageID if /run/current/system does not exist on NixO…

…S use case Signed-off-by: Mathieu Grzybek <[email protected]>
prometheus · Jan 8, 2025 · 5678be8 · 5678be8
1 parent ee7c66b
commit 5678be8
Showing 1 changed file with 7 additions and 3 deletions.
diff --git a/collector/os_release.go b/collector/os_release.go
@@ -137,9 +137,13 @@ func parseOSRelease(r io.Reader) (*osRelease, error) {
 }
 
 func getNixOSImageID() string {
-	currentSystemSymlink, _ := filepath.EvalSymlinks("/run/current-system")
-	nixStoreDirectory := strings.Split(currentSystemSymlink, "/")[3]
-	result := strings.Split(nixStoreDirectory, "-")[0]
+	var result string
+	currentSystemSymlink, err := filepath.EvalSymlinks("/run/current-system")
+
+	if err == nil {
+		nixStoreDirectory := strings.Split(currentSystemSymlink, "/")[3]
+		result = strings.Split(nixStoreDirectory, "-")[0]
+	}
 
 	return result
 }