Create 500 error alert

Author: mrlockstar

infrastructure/modules/container-apps/alerts.tf

@@ -0,0 +1,35 @@
+resource "azurerm_monitor_scheduled_query_rules_alert_v2" "five_hundred_error_alert" {
+  count = var.enable_alerting ? 1 : 0
+
+  auto_mitigation_enabled          = false
+  description                      = "An alert triggered by 500 errors logged in code"
+  enabled                          = var.enable_alerting
+  evaluation_frequency             = "PT5M"
+  location                         = var.region
+  name                             = "${var.app_short_name}-500-error-alert"
+  resource_group_name              = azurerm_resource_group.main.name
+  scopes                           = [var.action_group_id]
+  severity                         = 2
+  skip_query_validation            = false
+  window_duration                  = "PT5M"
+  workspace_alerts_storage_enabled = false
+
+  action {
+    action_groups = [var.action_group_id]
+  }
+
+  criteria {
+    operator                = "GreaterThan"
+    query                   = <<-QUERY
+      ContainerAppConsoleLogs_CL
+      | where Log_s contains "500"
+      QUERY
+    threshold               = 0
+    time_aggregation_method = "Count"
+
+    failing_periods {
+      minimum_failing_periods_to_trigger_alert = 1
+      number_of_evaluation_periods             = 1
+    }
+  }
+}