From 73a61bf18ab361e6e91188673179b4c047fd4158 Mon Sep 17 00:00:00 2001
From: Petru Paler <petru@paler.net>
Date: Mon, 10 Jul 2023 06:36:41 +0100
Subject: [PATCH] Grafana config.

---
 services/grafana.hcl       | 57 ++++++++++++++++++++++++++++++++++++++
 storage/grafana-volume.hcl | 26 +++++++++++++++++
 2 files changed, 83 insertions(+)
 create mode 100644 services/grafana.hcl
 create mode 100644 storage/grafana-volume.hcl

diff --git a/services/grafana.hcl b/services/grafana.hcl
new file mode 100644
index 0000000..6b23d05
--- /dev/null
+++ b/services/grafana.hcl
@@ -0,0 +1,57 @@
+job "grafana" {
+  datacenters = ["alo"]
+
+  group "monitoring" {
+    network {
+      port "http" {
+        host_network = "tailscale"
+      }
+    }
+
+    volume "data-volume" {
+      type = "csi"
+      source = "grafana-data"
+      access_mode = "single-node-writer"
+      attachment_mode = "file-system"
+    }
+
+    task "grafana" {
+      driver = "docker"
+
+      config {
+        image = "grafana/grafana-enterprise"
+        ports = [ "http" ]
+      }
+
+      env {
+        GF_AUTH_BASIC_ENABLED = "false"
+        GF_SERVER_HTTP_PORT = "${NOMAD_PORT_http}"
+      }
+
+      volume_mount {
+        volume = "data-volume"
+        destination = "/var/lib/grafana"
+      }
+
+      service {
+        port = "http"
+	name = "grafana"
+        tags = [
+          "traefik.enable=true",
+          "traefik.http.routers.grafana.entryPoints=websecure",
+        ]
+        check {
+          type     = "http"
+          path     = "/"
+          interval = "10s"
+          timeout  = "2s"
+        }
+      }
+
+      resources {
+        cpu    = 100
+        memory = 128
+      }
+    }
+  }
+}
diff --git a/storage/grafana-volume.hcl b/storage/grafana-volume.hcl
new file mode 100644
index 0000000..1a34425
--- /dev/null
+++ b/storage/grafana-volume.hcl
@@ -0,0 +1,26 @@
+id        = "grafana-data"
+name      = "grafana-data"
+type      = "csi"
+plugin_id = "seaweedfs"
+
+capacity_min = "10GiB"
+capacity_max = "20GiB"
+
+capability {
+  access_mode     = "single-node-writer"
+  attachment_mode = "file-system"
+}
+
+# Optional: for 'nomad volume create', specify mount options to validate for
+# 'attachment_mode = "file-system". Registering an existing volume will record
+# but ignore these fields.
+mount_options {
+  mount_flags = ["rw"]
+}
+
+parameters {
+  # Available options: https://github.com/seaweedfs/seaweedfs-csi-driver/blob/master/pkg/driver/mounter_seaweedfs.go
+  collection = "appdata"
+  replication = "001"
+  path = "/appdata/grafana"
+}