observation conversion

2024-12-01 23:21:42 -06:00
parent 5cfe401b8c
commit 809d4ee6c1
4 changed files with 111 additions and 0 deletions
--- a/promtail.nix
+++ b/promtail.nix
@@ -0,0 +1,81 @@
+{ config, ... }:
+let
+  lokiHost = "192.168.1.174:3100";
+in
+{
+  systemd.services.promtail.serviceConfig = {
+    SupplementaryGroups = [ "docker" ];
+  };
+
+  services.promtail = {
+    enable = true;
+    configuration = {
+      server = {
+        http_listen_port = 3031;
+        grpc_listen_port = 0;
+      };
+      positions = {
+        filename = "/tmp/positions.yaml";
+      };
+      clients = [{url = "http://${lokiHost}/loki/api/v1/push";}];
+      scrape_configs = [
+        {
+          job_name = "journal";
+          journal = {
+            max_age = "24h";
+            path = "/var/log/journal";
+            json = true;
+            # matches: _TRANSPORT=kernel;
+            labels = {
+              job = "systemd-journal";
+              host = config.networking.hostName; # Dynamically fetch the hostname
+            };
+          };
+          relabel_configs = [
+            {
+              source_labels = [ "__journal__systemd_unit" ];
+              target_label = "unit";
+            }
+          ];
+        }
+        {
+          job_name = "flog_scrape";
+          docker_sd_configs = [
+            {
+              host = "unix:///var/run/docker.sock";
+              refresh_interval = "5s";
+            }
+          ];
+          relabel_configs = [
+            {
+              source_labels = [ "__meta_docker_container_name" ];
+              regex = "/(.*)";
+              target_label = "container";
+            }
+            {
+              source_labels = [ "__meta_docker_container_label_com_docker_compose_oneoff" ];
+              target_label = "oneoff";
+            }
+            {
+              source_labels = [ "__meta_docker_container_label_com_docker_compose_project_config_files" ];
+              target_label = "compose_file";
+            }
+            {
+              source_labels = [ "__meta_docker_container_label_com_docker_compose_project" ];
+              target_label = "project_name";
+            }
+            {
+              source_labels = [ "__meta_docker_container_label_com_docker_compose_service" ];
+              target_label = "service";
+            }
+            {
+              target_label = "host";
+              replacement = "${config.networking.hostName}";
+            }
+          ];
+        }
+      ];
+    };
+    # extraFlags
+  };
+}