add provision config for grafana

README.md

@@ -117,3 +117,13 @@ A username and password should be generated for running the services. To do so:
 For running the things separately, using their `Dockerfile`'s, `docker build -t <image-tag> -f ./Dockerfile ../../` command must be used to give the context to be able to copy `tm.json` into the container.
 
 For Node.js-based devices, we use npm workspaces and running `npm install` at the root directory installs all the packages needed for every device. After packages are installed, running `node main.js` would run the thing. For port configuration, running either `node main.js -p 1000` or `node main.js --port 1000` would start the thing on port 1000.
+
+### Saving Grafana Dashboards
+
+Grafana dashboard json files are stored in [./conf/grafana/dashboards](./conf//grafana//dashboards/).
+To save your newly created dashboard locally and push it into the remote repository:
+  - Export the dashboard as JSON file using Share > Export.
+  - Save the exported JSON file to [./conf/grafana/dashboards](./conf//grafana//dashboards/).
+
+If your dashboard uses another datasource than our default `prometheus-datasource`, new datasource also must be provisioned in [./conf/grafana/datasources](./conf/grafana/provisioning/datasources/).
+For more information check Grafana's provisioning [documentation](https://grafana.com/docs/grafana/latest/administration/provisioning/).

conf/grafana/dashboards/dashboard.json

@@ -0,0 +1,142 @@
+{
+  "annotations": {
+    "list": [
+      {
+        "builtIn": 1,
+        "datasource": {
+          "type": "grafana",
+          "uid": "-- Grafana --"
+        },
+        "enable": true,
+        "hide": true,
+        "iconColor": "rgba(0, 211, 255, 1)",
+        "name": "Annotations & Alerts",
+        "type": "dashboard"
+      }
+    ]
+  },
+  "editable": true,
+  "fiscalYearStartMonth": 0,
+  "graphTooltip": 0,
+  "id": 1,
+  "links": [],
+  "panels": [
+    {
+      "datasource": {
+        "default": true,
+        "type": "prometheus",
+        "uid": "adwznwwq8yupse"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "axisBorderShow": true,
+            "axisCenteredZero": false,
+            "axisColorMode": "text",
+            "axisLabel": "",
+            "axisPlacement": "auto",
+            "barAlignment": 0,
+            "barWidthFactor": 0.5,
+            "drawStyle": "bars",
+            "fillOpacity": 100,
+            "gradientMode": "none",
+            "hideFrom": {
+              "legend": false,
+              "tooltip": false,
+              "viz": false
+            },
+            "insertNulls": false,
+            "lineInterpolation": "smooth",
+            "lineWidth": 2,
+            "pointSize": 5,
+            "scaleDistribution": {
+              "type": "linear"
+            },
+            "showPoints": "auto",
+            "spanNulls": false,
+            "stacking": {
+              "group": "A",
+              "mode": "none"
+            },
+            "thresholdsStyle": {
+              "mode": "off"
+            }
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 0,
+        "y": 0
+      },
+      "id": 1,
+      "options": {
+        "legend": {
+          "calcs": [],
+          "displayMode": "list",
+          "placement": "right",
+          "showLegend": true
+        },
+        "tooltip": {
+          "mode": "single",
+          "sort": "none"
+        }
+      },
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "adwznwwq8yupse"
+          },
+          "disableTextWrap": false,
+          "editorMode": "builder",
+          "expr": "changes(traefik_service_requests_total{protocol=\"http\", service=\"http-express-calculator-simple-test-things@docker\"}[1m])",
+          "fullMetaSearch": false,
+          "includeNullMetadata": true,
+          "instant": false,
+          "legendFormat": "Status Code:{{code}}",
+          "range": true,
+          "refId": "A",
+          "useBackend": false
+        }
+      ],
+      "title": "HTTP Express Calculator GET Requests",
+      "type": "timeseries"
+    }
+  ],
+  "refresh": "",
+  "schemaVersion": 39,
+  "tags": [],
+  "templating": {
+    "list": []
+  },
+  "time": {
+    "from": "now-1h",
+    "to": "now"
+  },
+  "timepicker": {},
+  "timezone": "browser",
+  "title": "HTTP Services",
+  "uid": "bdwzocnv714hsd",
+  "version": 1,
+  "weekStart": ""
+}

conf/grafana/provisioning/dashboards/dashboard.yml

@@ -0,0 +1,11 @@
+apiVersion: 1
+
+providers:
+  - name: "default"
+    orgId: 1
+    folder: ""
+    type: file
+    disableDeletion: false
+    updateIntervalSeconds: 10
+    options:
+      path: /var/lib/grafana/dashboards

conf/grafana/provisioning/datasources/datasource.yml

@@ -0,0 +1,10 @@
+apiVersion: 1
+
+datasources:
+  - name: prometheus-datasource
+    uid: adwznwwq8yupse #THIS IS IMPORTANT ON THE DASHBOARD MUST BE THE SAME
+    orgId: 1
+    type: prometheus
+    access: proxy
+    url: http://prometheus:${PROMETHEUS_PORT}
+    isDefault: true

docker-compose-infra.yml

@@ -59,10 +59,12 @@ services:
       - cadvisor
   grafana:
     image: grafana/grafana
+    environment:
+      - PROMETHEUS_PORT=${PROMETHEUS_PORT}
     volumes:
+      - ./conf/grafana/provisioning:/etc/grafana/provisioning
+      - ./conf/grafana/dashboards:/var/lib/grafana/dashboards
       - grafana_data:/var/lib/grafana
-    environment:  
-      GF_INSTALL_PLUGINS: grafana-piechart-panel
     labels:
       - "traefik.http.routers.grafana.rule=Host(`grafana.${HOSTNAME}`)"
       - "traefik.http.routers.grafana.service=grafana"
@@ -124,6 +126,6 @@ services:
           cpus: '0.05'
           memory: 50M
 volumes:
-  grafana_data:
   prometheus_data:
+  grafana_data:
   portainer_data: