From 5433925fd5d942bd1c9279854f7a05cc952e6731 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thorben=20G=C3=BCnther?= <admin@xenrox.net>
Date: Sat, 2 Oct 2021 14:47:19 +0200
Subject: [PATCH] grafana: Provision first simple dashboard

---
 roles/grafana/files/dashboard.json | 135 +++++++++++++++++++++++++++++
 roles/grafana/files/dashboard.yml  |  14 +++
 roles/grafana/tasks/main.yml       |  25 +++++-
 3 files changed, 171 insertions(+), 3 deletions(-)
 create mode 100644 roles/grafana/files/dashboard.json
 create mode 100644 roles/grafana/files/dashboard.yml

diff --git a/roles/grafana/files/dashboard.json b/roles/grafana/files/dashboard.json
new file mode 100644
index 0000000..10c4c13
--- /dev/null
+++ b/roles/grafana/files/dashboard.json
@@ -0,0 +1,135 @@
+{
+  "annotations": {
+    "list": [
+      {
+        "builtIn": 1,
+        "datasource": "-- Grafana --",
+        "enable": true,
+        "hide": true,
+        "iconColor": "rgba(0, 211, 255, 1)",
+        "name": "Annotations & Alerts",
+        "target": {
+          "limit": 100,
+          "matchAny": false,
+          "tags": [],
+          "type": "dashboard"
+        },
+        "type": "dashboard"
+      }
+    ]
+  },
+  "editable": true,
+  "gnetId": null,
+  "graphTooltip": 0,
+  "id": null,
+  "iteration": 1633177249131,
+  "links": [],
+  "panels": [
+    {
+      "datasource": "Prometheus",
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "thresholds"
+          },
+          "decimals": 0,
+          "mappings": [],
+          "max": 100,
+          "min": 0,
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "#98971a",
+                "value": null
+              },
+              {
+                "color": "#d65d0e",
+                "value": 80
+              },
+              {
+                "color": "#cc241d",
+                "value": 90
+              }
+            ]
+          },
+          "unit": "percent"
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 4,
+        "w": 3,
+        "x": 0,
+        "y": 0
+      },
+      "id": 2,
+      "options": {
+        "orientation": "auto",
+        "reduceOptions": {
+          "calcs": ["lastNotNull"],
+          "fields": "",
+          "values": false
+        },
+        "showThresholdLabels": false,
+        "showThresholdMarkers": true,
+        "text": {}
+      },
+      "pluginVersion": "8.1.5",
+      "targets": [
+        {
+          "exemplar": true,
+          "expr": "100 - (100 * node_memory_MemAvailable_bytes{instance=\"$node\"} / node_memory_MemTotal_bytes{instance=\"$node\"})",
+          "interval": "",
+          "legendFormat": "",
+          "refId": "A"
+        }
+      ],
+      "title": "RAM Usage",
+      "type": "gauge"
+    }
+  ],
+  "schemaVersion": 30,
+  "style": "dark",
+  "tags": [],
+  "templating": {
+    "list": [
+      {
+        "allValue": null,
+        "current": {
+          "selected": true,
+          "text": "xenrox.net",
+          "value": "xenrox.net"
+        },
+        "datasource": "Prometheus",
+        "definition": "label_values(instance)",
+        "description": null,
+        "error": null,
+        "hide": 0,
+        "includeAll": false,
+        "label": "Server:",
+        "multi": false,
+        "name": "node",
+        "options": [],
+        "query": {
+          "query": "label_values(instance)",
+          "refId": "StandardVariableQuery"
+        },
+        "refresh": 1,
+        "regex": "",
+        "skipUrlSync": false,
+        "sort": 2,
+        "type": "query"
+      }
+    ]
+  },
+  "time": {
+    "from": "now-24h",
+    "to": "now"
+  },
+  "timepicker": {},
+  "timezone": "browser",
+  "title": "Monitoring",
+  "uid": "UkJ1FRD7k",
+  "version": 0
+}
diff --git a/roles/grafana/files/dashboard.yml b/roles/grafana/files/dashboard.yml
new file mode 100644
index 0000000..7ed643b
--- /dev/null
+++ b/roles/grafana/files/dashboard.yml
@@ -0,0 +1,14 @@
+apiVersion: 1
+
+providers:
+  - name: "dashboards"
+    orgId: 1
+    folder: ""
+    folderUid: ""
+    type: file
+    disableDeletion: false
+    updateIntervalSeconds: 10
+    allowUiUpdates: false
+    options:
+      path: /var/lib/grafana/dashboards
+      foldersFromFilesStructure: true
diff --git a/roles/grafana/tasks/main.yml b/roles/grafana/tasks/main.yml
index 77fb9d3..d2d5beb 100644
--- a/roles/grafana/tasks/main.yml
+++ b/roles/grafana/tasks/main.yml
@@ -20,13 +20,15 @@
 - name: Create provisioning directories
   ansible.builtin.file:
     state: directory
-    path: "/etc/grafana/{{ item }}"
+    path: "{{ item }}"
     owner: grafana
     group: grafana
     mode: 0700
   with_items:
-    - provisioning
-    - provisioning/datasources
+    - /etc/grafana/provisioning
+    - /etc/grafana/provisioning/dashboards
+    - /etc/grafana/provisioning/datasources
+    - /var/lib/grafana/dashboards
 
 - name: Configure prometheus datasource
   ansible.builtin.copy:
@@ -37,6 +39,23 @@
     mode: 0600
   notify: Restart grafana
 
+- name: Configure dashboard provisioning
+  ansible.builtin.copy:
+    src: dashboard.yml
+    dest: /etc/grafana/provisioning/dashboards/dashboard.yml
+    owner: grafana
+    group: grafana
+    mode: 0600
+  notify: Restart grafana
+
+- name: Install dashboard
+  ansible.builtin.copy:
+    src: dashboard.json
+    dest: /var/lib/grafana/dashboards
+    owner: grafana
+    group: grafana
+    mode: 0600
+
 - name: Start and enable
   ansible.builtin.systemd:
     name: grafana
-- 
2.44.0