From 6a3f7018e0cd90c6f9cdd5495ed4aa1423fbb080 Mon Sep 17 00:00:00 2001
From: wizzdom <dom@wizzdom.xyz>
Date: Fri, 28 Feb 2025 02:40:16 +0000
Subject: [PATCH] grafana: add dynamic prometheus datasource

---
 jobs/monitoring/grafana.hcl | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/jobs/monitoring/grafana.hcl b/jobs/monitoring/grafana.hcl
index 2d76bc1..5a981ae 100644
--- a/jobs/monitoring/grafana.hcl
+++ b/jobs/monitoring/grafana.hcl
@@ -48,11 +48,11 @@ job "grafana" {
         ports = ["http"]
 
         volumes = [
-          "/storage/nomad/${NOMAD_JOB_NAME}/${NOMAD_TASK_NAME}:/var/lib/grafana"
+          "/storage/nomad/${NOMAD_JOB_NAME}/${NOMAD_TASK_NAME}:/var/lib/grafana",
+          "local/datasources.yml:/etc/grafana/provisioning/datasources/datasources.yml"
         ]
       }
 
-
       template {
         data        = <<EOH
 GF_DATABASE_TYPE=postgres
@@ -66,6 +66,21 @@ EOH
         destination = "local/.env"
         env         = true
       }
+      template {
+        data        = <<EOH
+apiVersion: 1
+
+datasources:
+  - name: Prometheus
+    type: prometheus
+    access: proxy
+    {{- range service "prometheus" }}
+    url: http://prometheus.service.consul:{{ .Port }}{{ end }}
+    isDefault: true
+    editable: false
+EOH
+        destination = "local/datasources.yml"
+      }
     }
     task "db" {
       driver = "docker"