chore(DO-1060): Add support for http & custom scale rule

main.tf

@@ -261,6 +261,36 @@ resource "azurerm_container_app" "container_app" {
         storage_type = volume.value.storage_type
       }
     }
+    dynamic "http_scale_rule" {
+      for_each = each.value.template.http_scale_rules
+      content {
+        name                = http_scale_rule.value.name
+        concurrent_requests = http_scale_rule.value.concurrent_requests
+        dynamic "authentication" {
+          for_each = http_scale_rule.value.authentication != null ? [http_scale_rule.value.authentication] : []
+          content {
+            secret_name       = authentication.value.secret_name
+            trigger_parameter = authentication.value.trigger_parameter
+          }
+        }
+      }
+    }
+
+    dynamic "custom_scale_rule" {
+      for_each = each.value.template.custom_scale_rules
+      content {
+        name             = custom_scale_rule.value.name
+        custom_rule_type = custom_scale_rule.value.custom_rule_type
+        metadata         = custom_scale_rule.value.metadata
+        dynamic "authentication" {
+          for_each = custom_scale_rule.value.authentication != null ? [custom_scale_rule.value.authentication] : []
+          content {
+            secret_name       = authentication.value.secret_name
+            trigger_parameter = authentication.value.trigger_parameter
+          }
+        }
+      }
+    }
   }
   dynamic "dapr" {
     for_each = each.value.dapr == null ? [] : [each.value.dapr]
@@ -327,4 +357,5 @@ resource "azurerm_container_app" "container_app" {
       value = local.container_app_secrets[each.key][secret.key]
     }
   }
+
 }

variables.tf

@@ -90,7 +90,23 @@ variable "container_apps" {
       max_replicas    = optional(number)
       min_replicas    = optional(number)
       revision_suffix = optional(string)
-
+      http_scale_rules = optional(list(object({
+        name                = string
+        concurrent_requests = number
+        authentication = optional(object({
+          secret_name       = string
+          trigger_parameter = string
+        }))
+      })))
+      custom_scale_rules = optional(list(object({
+        name             = string
+        custom_rule_type = string # See https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/container_app#custom_rule_type
+        metadata         = map(string)
+        authentication = optional(object({
+          secret_name       = string
+          trigger_parameter = string
+        }))
+      })))
       volume = optional(set(object({
         name         = string
         storage_name = optional(string)
@@ -134,6 +150,7 @@ variable "container_apps" {
       password_secret_name = optional(string)
       identity             = optional(string)
     })))
+
   }))
   description = "The container apps to deploy."
   nullable    = false
@@ -146,6 +163,14 @@ variable "container_apps" {
     condition     = alltrue([for n, c in var.container_apps : c.ingress == null ? true : (c.ingress.ip_security_restrictions == null ? true : (length(distinct([for r in c.ingress.ip_security_restrictions : r.action])) <= 1))])
     error_message = "The `action` types in an all `ip_security_restriction` blocks must be the same for the `ingress`, mixing `Allow` and `Deny` rules is not currently supported by the service."
   }
+  validation {
+    condition     = alltrue([for n, c in var.container_apps : c.template.custom_scale_rules == null || alltrue([for _, r in c.template.custom_scale_rules : can(regex("^[a-z0-9][a-z0-9-.]*[a-z0-9]$", r.name))])])
+    error_message = "The `name` in `custom_scale_rule` must consist of lower case alphanumeric characters, '-', or '.', and should start and end with an alphanumeric character."
+  }
+  validation {
+    condition     = alltrue([for n, c in var.container_apps : c.template.http_scale_rules == null || alltrue([for _, r in c.template.http_scale_rules : can(regex("^[a-z0-9][a-z0-9-.]*[a-z0-9]$", r.name))])])
+    error_message = "The `name` in `http_scale_rule` must consist of lower case alphanumeric characters, '-', or '.', and should start and end with an alphanumeric character."
+  }
 }
 
 variable "location" {