journal hostname label

templates/config.alloy.erb

@@ -45,6 +45,11 @@ loki.relabel "add_labels" {
   forward_to = [loki.write.loki.receiver]
 
   rule {
+    action        = "replace"
+    source_labels = ["__hostname"]
+    target_label  = "hostname"
+  }
+    rule {
     action       = "replace"
     target_label = "job"
     replacement  = "syslogs"