docs: update _index.md, If the service_name label exists, it's not …

…overwritten (#15165) (cherry picked from commit 6ed336c)
grafana · Nov 27, 2024 · 2d7eb1f · 2d7eb1f
1 parent 18df90c
commit 2d7eb1f
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/docs/sources/setup/upgrade/_index.md b/docs/sources/setup/upgrade/_index.md
@@ -145,6 +145,7 @@ Loki 3.0 will automatically assign a `service_name` label to all ingested logs b
 
 Loki will attempt to create the `service_name` label by looking for the following labels in this order:
 
+  - service_name
   - service
   - app
   - application