🔧(k8s) configure grafana to enable its ingress

In the helm chart managing the prometheus stack, it is possible to
enable the grafana ingress in order to access its admin and visualize
all the metrics. Some variables are added to configure this part.

Author: lunika

k8s/base/jibri-hpa.yaml

@@ -20,7 +20,7 @@
 # metric, which takes into account all jibri pods in the namespace (those
 # managed by the deployment + the orphaned pods that are busy)
 
-apiVersion: autoscaling/v2beta2
+apiVersion: autoscaling/v2
 kind: HorizontalPodAutoscaler
 metadata:
   name: jibri-hpa

k8s/base/jitsi-meet-front-hpa.yml

@@ -1,4 +1,4 @@
-apiVersion: autoscaling/v2beta2
+apiVersion: autoscaling/v2
 kind: HorizontalPodAutoscaler
 metadata:
   name: jitsi-meet-front-hpa

k8s/base/jvb-deployment.yml

@@ -93,7 +93,7 @@ spec:
         # Sidecar container that exports stats for Prometheus
         # Values are scraped by ./jvb-podmonitor.yml
         - name: exporter
-          image: systemli/prometheus-jitsi-meet-exporter:1.2.0
+          image: systemli/prometheus-jitsi-meet-exporter:1.2.1
           imagePullPolicy: IfNotPresent
           livenessProbe:
             failureThreshold: 5

k8s/base/jvb-hpa.yml

@@ -1,4 +1,4 @@
-apiVersion: autoscaling/v2beta2
+apiVersion: autoscaling/v2
 kind: HorizontalPodAutoscaler
 metadata:
   name: jvb-hpa

terraform/prometheus.tf

@@ -29,7 +29,7 @@ resource "helm_release" "kube-prometheus-stack" {
   }
 
   # Add Jitsi-Meet dashboards to Grafana
-  # Dashboards are fetched from https://github.com/systemli/prometheus-jitsi-meet-exporter/tree/1.2.0/dashboards
+  # Dashboards are fetched from https://github.com/systemli/prometheus-jitsi-meet-exporter/tree/1.2.1/dashboards
   # Values are merged with https://github.com/grafana/helm-charts/blob/main/charts/grafana/values.yaml
   set {
     name = "grafana.dashboardProviders.dashboardproviders\\.yaml.apiVersion"
@@ -53,7 +53,7 @@ resource "helm_release" "kube-prometheus-stack" {
 
   set {
     name = "grafana.dashboards.jitsi.jitsi-meet.url"
-    value = "https://raw.githubusercontent.com/systemli/prometheus-jitsi-meet-exporter/1.2.0/dashboards/jitsi-meet.json"
+    value = "https://raw.githubusercontent.com/systemli/prometheus-jitsi-meet-exporter/1.2.1/dashboards/jitsi-meet.json"
   }
 
   set {
@@ -63,7 +63,32 @@ resource "helm_release" "kube-prometheus-stack" {
 
   set {
     name = "grafana.dashboards.jitsi.jitsi-meet-system.url"
-    value = "https://raw.githubusercontent.com/systemli/prometheus-jitsi-meet-exporter/1.2.0/dashboards/jitsi-meet-system.json"
+    value = "https://raw.githubusercontent.com/systemli/prometheus-jitsi-meet-exporter/1.2.1/dashboards/jitsi-meet-system.json"
+  }
+
+  set {
+    name = "grafana.ingress.enabled"
+    value = lookup(var.k8s_grafana_ingress_enabled, terraform.workspace, false)
+  }
+
+  set {
+    name = "grafana.ingress.ingressClassName"
+    value = "nginx"
+  }
+
+  set {
+    name = "grafana.ingress.hosts[0]"
+    value = lookup(var.k8s_grafana_ingress_host, terraform.workspace, "monitoring.example.com")
+  }
+
+  set {
+    name = "grafana.ingress.annotations.cert-manager\\.io/issuer"
+    value = "letsencrypt-jitsi-issuer"
+  }
+
+  set_sensitive {
+    name = "grafana.adminPassword"
+    value = lookup(var.k8s_grafana_admin_passord, terraform.workspace, "ThisIsNotASecurePassword")
   }
 
   set {

terraform/variables.tf

@@ -280,4 +280,30 @@ variable "k8s_ingress_nginx_version" {
   default = {
     preprod = "3.39.0"
   }
+}
+
+variable "k8s_grafana_ingress_enabled" {
+  type = map(bool)
+  description = "enable ingress for grafana UI"
+
+  default = {
+  }
+}
+
+variable "k8s_grafana_ingress_host" {
+  type = map(string)
+  description = "host to reach grafana admin"
+
+  default = {
+    preprod="grafana.preprod.exemple.com"
+  }
+}
+
+variable "k8s_grafana_admin_passord" {
+  type = map(string)
+  description = "grafana admin password"
+
+  default = {
+    preprod="this is an invalid password"
+  }
 }