Home K8S setup

step3/infrastructure/prometheus.tf

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+# resource "null_resource" "prometheus_pv" {
+
+#   provisioner "local-exec" {
+#     when    = create
+#     command = "kubectl apply -f static/prometheus-pv.yaml"
+#   }
+
+#   provisioner "local-exec" {
+#     when    = destroy
+#     command = "kubectl delete -f static/prometheus-pv.yaml"
+#   }
+# }
+
+resource "helm_release" "prometheus" {
+  # depends_on = [ null_resource.prometheus_pv ]
+  name       = "prometheus"
+  namespace  = "default"
+  chart      = "kube-prometheus-stack"
+  repository = "https://prometheus-community.github.io/helm-charts"
+  wait       = false
+  # set {
+  #   name = "kube-state-metrics.image.repository"
+  #   value = "carlosedp/kube-state-metrics"
+  # }
+
+  # set {
+  #   name = "kube-state-metrics.image.tag"
+  #   value = "v1.9.6"
+  # }
+}
+
+resource "null_resource" "prometheus_patch" {
+  depends_on = [helm_release.prometheus]
+  provisioner "local-exec" {
+    when    = create
+    command = <<EOF
+kubectl patch ds prometheus-prometheus-node-exporter --type json -p '[{"op": "remove", "path" : "/spec/template/spec/containers/0/volumeMounts/2/mountPropagation"}]' || true
+    EOF
+  }
+}
+
+resource "kubernetes_ingress" "traefik_grafana_routing" {
+  metadata {
+    name = "traefik-k8s-grafana"
+    annotations = {
+      "kubernetes.io/ingress.class" : "traefik"
+    }
+    namespace = "default"
+  }
+
+  spec {
+    rule {
+      host = "grafana.local"
+      http {
+        path {
+          path = "/"
+          backend {
+            service_name = "prometheus-grafana"
+            service_port = 80
+          }
+        }
+      }
+    }
+  }
+}