feat: massive refactoring...

config/alloy/proxy-traefik.alloy.nix

@@ -0,0 +1,54 @@
+{ config, tools, ... }:
+let
+  hostname = tools.build_hostname "proxy";
+  ip = tools.build_ip "proxy";
+in
+{
+  out = ''
+    loki.relabel "trf_journal" {
+      forward_to = []
+      rule {
+        source_labels = ["__journal__priority_keyword"]
+        target_label = "level"
+      }
+      rule {
+        source_labels = ["__journal__SYSLOG_IDENTIFIER"]
+        target_label = "app"
+      }
+    }
+
+    loki.source.journal "trf_journal_scrape" {
+      forward_to = [loki.process.trf_router.receiver]
+      matches = "_SYSTEMD_UNIT=traefik.service"
+      relabel_rules = loki.relabel.trf_journal.rules
+      labels = {
+        service = "traefik",
+        host = "${hostname}",
+        host_ip = "${ip}",
+      }
+    }
+    loki.process "trf_router" {
+      stage.regex {
+        expression = "^(?P<datetime>\\S+) (?P<level>\\w{3}) (?P<message>.*)$"
+      }
+      stage.timestamp {
+        source = "datetime"
+        format = "2006-01-02 15:04:05-07:00"
+      }
+      stage.replace {
+        source = "level"
+        expression = "INF"
+        replace = "INFO"
+      }
+      stage.labels {
+        values = {
+          level = "level",
+        }
+      }
+      stage.output {
+        source = "message"
+      }
+      forward_to = [loki.write.grafana_loki.receiver]
+    }
+  '';
+}