Update _index.md

If the `service_name` label exists, it's not overwritten
grafana · Nov 27, 2024 · 9908d94 · 9908d94
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commit 9908d94
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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