chart: update monitoring resources (#329)

### Monitoring settings:
* Disabled rendering of Prometheus resources by default.
* Added a new relabeling configuration to replace the `instance` label based on the `app_kubernetes_io_name` label. Instance will be displayed as Helm release name instead of pod IP address.

### Grafana dashboard configuration:
* Changed the `interval` field for several metrics queries from `"$__rate_interval"` to `"$interval"`.
* Updated the `refresh` interval from `30s` to `1m`.
* Added a new variable for `Step Interval` with default value `2m`.

### Chart version update:
* Updated the chart version from `0.4.0` to `0.5.0`.

Signed-off-by: Dmytro Bondar <git@bonddim.com>

deploy/helm/Chart.yaml

@@ -16,7 +16,7 @@ annotations:
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.4.0
+version: 0.5.0
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to

deploy/helm/README.md

@@ -1,6 +1,6 @@
 # wg-portal
 
-![Version: 0.4.0](https://img.shields.io/badge/Version-0.4.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: latest](https://img.shields.io/badge/AppVersion-latest-informational?style=flat-square)
+![Version: 0.5.0](https://img.shields.io/badge/Version-0.5.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: latest](https://img.shields.io/badge/AppVersion-latest-informational?style=flat-square)
 
 WireGuard Configuration Portal with LDAP, OAuth, OIDC authentication
 
@@ -105,7 +105,7 @@ The [Values](#values) section lists the parameters that can be configured during
 | serviceAccount.annotations | object | `{}` | Service account annotations |
 | serviceAccount.automount | bool | `false` | Automatically mount a ServiceAccount's API credentials |
 | serviceAccount.name | string | `""` | The name of the service account to use. If not set and create is true, a name is generated using the fullname template |
-| monitoring.enabled | bool | `true` | Enable Prometheus monitoring. |
+| monitoring.enabled | bool | `false` | Enable Prometheus monitoring. |
 | monitoring.apiVersion | string | `"monitoring.coreos.com/v1"` | API version of the Prometheus resource. Use `azmonitoring.coreos.com/v1` for Azure Managed Prometheus. |
 | monitoring.kind | string | `"PodMonitor"` | Kind of the Prometheus resource. Could be `PodMonitor` or `ServiceMonitor`. |
 | monitoring.labels | object | `{}` | Resource labels. |

deploy/helm/files/dashboard.json

@@ -219,7 +219,7 @@
           "expr": "sum by (instance, interface) (rate(wireguard_interface_received_bytes_total{instance=\"$instance\", interface=~\"$interface\"}[$__rate_interval]))",
           "hide": false,
           "instant": false,
-          "interval": "$__rate_interval",
+          "interval": "",
           "legendFormat": "Received {{interface}}",
           "range": true,
           "refId": "A"
@@ -233,7 +233,7 @@
           "expr": "sum by (instance, interface) (rate(wireguard_interface_sent_bytes_total{instance=\"$instance\", interface=~\"$interface\"}[$__rate_interval]))",
           "hide": false,
           "instant": false,
-          "interval": "$__rate_interval",
+          "interval": "",
           "legendFormat": "Sent {{interface}}",
           "range": true,
           "refId": "B"
@@ -337,7 +337,7 @@
           "expr": "sum by (name, instance, interface) (rate(wireguard_peer_received_bytes_total{instance=\"$instance\", interface=~\"$interface\"}[$__rate_interval]))",
           "hide": false,
           "instant": false,
-          "interval": "$__rate_interval",
+          "interval": "$interval",
           "legendFormat": "{{name}}",
           "range": true,
           "refId": "A"
@@ -441,7 +441,7 @@
           "expr": "sum by (instance, interface, name) (rate(wireguard_peer_sent_bytes_total{instance=\"$instance\", interface=~\"$interface\"}[$__rate_interval]))",
           "hide": false,
           "instant": false,
-          "interval": "$__rate_interval",
+          "interval": "$interval",
           "legendFormat": "{{name}}",
           "range": true,
           "refId": "A"
@@ -519,9 +519,9 @@
           },
           "editorMode": "code",
           "exemplar": false,
-          "expr": "sum(wireguard_peer_up{instance=\"$instance\", interface=~\"$interface\"}) by (id, instance, interface, name,)",
+          "expr": "sum by(name) (wireguard_peer_up{instance=\"$instance\", interface=~\"$interface\"})",
           "instant": false,
-          "interval": "$__rate_interval",
+          "interval": "$interval",
           "legendFormat": "{{name}}",
           "range": true,
           "refId": "A"
@@ -662,7 +662,6 @@
           }
         ]
       },
-      "pluginVersion": "11.2.0",
       "targets": [
         {
           "datasource": {
@@ -797,7 +796,7 @@
       "type": "table"
     }
   ],
-  "refresh": "30s",
+  "refresh": "1m",
   "tags": [
     "wireguard",
     "vpn"
@@ -865,6 +864,44 @@
         "skipUrlSync": false,
         "sort": 0,
         "type": "query"
+      },
+      {
+        "current": {
+          "text": "2m",
+          "value": "2m"
+        },
+        "description": "",
+        "label": "Step Interval",
+        "name": "interval",
+        "options": [
+          {
+            "selected": false,
+            "text": "30s",
+            "value": "30s"
+          },
+          {
+            "selected": false,
+            "text": "1m",
+            "value": "1m"
+          },
+          {
+            "selected": true,
+            "text": "2m",
+            "value": "2m"
+          },
+          {
+            "selected": false,
+            "text": "5m",
+            "value": "5m"
+          },
+          {
+            "selected": false,
+            "text": "10m",
+            "value": "10m"
+          }
+        ],
+        "query": "30s,1m,2m,5m,10m",
+        "type": "custom"
       }
     ]
   },

deploy/helm/templates/monitoring.yaml

@@ -23,8 +23,13 @@ spec:
       {{- with .metricRelabelings }}
       metricRelabelings: {{- toYaml . | nindent 8 }}
       {{- end }}
+      relabelings:
+        - action: replace
+          sourceLabels:
+            - __meta_kubernetes_pod_label_app_kubernetes_io_name
+          targetLabel: instance
       {{- with .relabelings }}
-      relabelings: {{- toYaml . | nindent 8 }}
+      {{- toYaml . | nindent 8 }}
       {{- end }}
       {{- with .scrapeTimeout }}
       scrapeTimeout: {{ . }}

deploy/helm/values.yaml

@@ -207,7 +207,7 @@ serviceAccount:
 
 monitoring:
   # -- Enable Prometheus monitoring.
-  enabled: true
+  enabled: false
   # -- API version of the Prometheus resource.
   # Use `azmonitoring.coreos.com/v1` for Azure Managed Prometheus.
   apiVersion: monitoring.coreos.com/v1