From 67873179ce4be8ace39b59175764c84387926a18 Mon Sep 17 00:00:00 2001
From: Tigor Hutasuhut <tigor.hutasuhut@gmail.com>
Date: Wed, 30 Oct 2024 16:23:03 +0700
Subject: [PATCH] loki: added derivedFields for tempo

---
 system/services/telemetry/loki.nix  | 17 +++++++++++++++++
 system/services/telemetry/tempo.nix |  1 +
 2 files changed, 18 insertions(+)

diff --git a/system/services/telemetry/loki.nix b/system/services/telemetry/loki.nix
index 3b29992..7bb9072 100644
--- a/system/services/telemetry/loki.nix
+++ b/system/services/telemetry/loki.nix
@@ -2,6 +2,7 @@
 let
   cfg = config.profile.services.telemetry.loki;
   inherit (lib) mkIf;
+  inherit (lib.lists) optional;
   lokiDomain = "loki.tigor.web.id";
   server = config.services.loki.configuration.server;
 in
@@ -96,6 +97,22 @@ in
         jsonData = {
           timeout = 60;
           maxLines = 1000;
+          derivedFields =
+            [ ]
+            ++ (optional config.services.tempo.enable {
+              datasourceUid = "tempo";
+              matcherRegex = ''traceID=(\\w+)'';
+              name = "TraceID";
+              url = "$\${__value.raw}";
+              urlDisplayLabel = "Trace";
+            })
+            ++ (optional config.services.tempo.enable {
+              datasourceUid = "tempo";
+              matcherRegex = ''"trace_id":"(\\w+)"'';
+              name = "TraceID";
+              url = "$\${__value.raw}";
+              urlDisplayLabel = "Trace";
+            });
         };
       }
     ];
diff --git a/system/services/telemetry/tempo.nix b/system/services/telemetry/tempo.nix
index d4cae57..edf5c31 100644
--- a/system/services/telemetry/tempo.nix
+++ b/system/services/telemetry/tempo.nix
@@ -53,6 +53,7 @@ in
       {
         name = "Tempo";
         type = "tempo";
+        uid = "tempo";
         access = "proxy";
         url = "http://${server.http_listen_address}:${toString server.http_listen_port}";
         basicAuth = false;