feat: massive refactoring...

config/alloy/default-journal-logger.alloy.nix

@@ -0,0 +1,44 @@
+{
+  tools,
+  container,
+  service,
+  additional_stages,
+  ...
+}:
+let
+  hostname = tools.build_hostname container;
+  ip = tools.build_ip container;
+  prefix = "${container}_${service}";
+in
+{
+  out = ''
+        loki.relabel "${prefix}_journal" {
+          forward_to = []
+          rule {
+            source_labels = ["__journal__priority_keyword"]
+            target_label = "level"
+          }
+          rule {
+            source_labels = ["__journal__SYSLOG_IDENTIFIER"]
+            target_label = "app"
+          }
+        }
+        loki.source.journal "${prefix}_journal_scrape" {
+          forward_to = [loki.process.${prefix}_router.receiver]
+          matches = "_SYSTEMD_UNIT=${service}.service"
+          relabel_rules = loki.relabel.${prefix}_journal.rules
+          labels = {
+            service = "${service}",
+            host = "${hostname}",
+            host_ip = "${ip}",
+          }
+        }
+
+    loki.process "${prefix}_router" {
+
+      ${additional_stages}
+
+      forward_to = [loki.write.grafana_loki.receiver]
+    }
+  '';
+}