Add SM Alert and bump Grafana provider

Author: dgzlopes

terraform/sm.alerts.tf

@@ -0,0 +1,24 @@
+# Configure alerts for the synthetic monitoring checks
+
+# NOTE: In VSCode Terraform extension... the linting seems to be broken for this resource.
+resource "grafana_synthetic_monitoring_check_alerts" "http_check_alerts" {
+  check_id = grafana_synthetic_monitoring_check.http.id
+
+  alerts = [
+    {
+      name      = "ProbeFailedExecutionsTooHigh"
+      threshold = 1
+      period    = "15m"
+    },
+    {
+      name      = "TLSTargetCertificateCloseToExpiring"
+      threshold = 14
+      period    = ""
+    },
+    {
+      name      = "HTTPRequestDurationTooHighAvg"
+      threshold = 5000
+      period    = "10m"
+    }
+  ]
+}

terraform/stack.setup.tf

@@ -2,7 +2,7 @@ terraform {
   required_providers {
     grafana = {
       source  = "grafana/grafana"
-      version = ">= 2.9.0"
+      version = ">= 4.8.0"
     }
   }
 }