Application gateway listner was not found during terraform deployment

Question

Below is the terraform code which I am using to deploy WAF-2 appGW and provided all the required code for the certificate and all even though it's getting error .

this is the error:

Error: creating Application Gateway: (Name "appgw-appgw-v2-eastus" / Resource Group "rg-test-01"): network.ApplicationGatewaysClient#CreateOrUpdate: Failure sending request: StatusCode=400 -- Original Error: Code="InvalidResourceReference" Message="Resource /subscriptions/7674bdf6-953a-4f69-b581-219e134c9a73/resourceGroups/rg-test-01/providers/Microsoft.Network/applicationGateways/appgw-appgw-v2-eastus/sslCertificates/ssl_cert_name referenced by resource /subscriptions/7674bdf6-953a-4f69-b581-219e134c9a73/resourceGroups/rg-test-01/providers/Microsoft.Network/applicationGateways/appgw-appgw-v2-eastus/httpListeners/listenertest was not found. Please make sure that the referenced resource exists, and that both resources are in the same region." Details=[]

  dynamic "frontend_port" {
    for_each = var.frontend_port_config
    content {
      name = frontend_port.value.name
      port = frontend_port.value.port
    }
  }
  ssl_policy {
    policy_name          = var.ssl_policy["policy_type"] == "Predifined" ? var.ssl_policy["Policy_name"] : null
    policy_type          = var.ssl_policy["policy_type"]
    cipher_suites        = var.ssl_policy["policy_type"] == "Custom" ? var.ssl_policy["cipher_suites"] : null
    min_protocol_version = var.ssl_policy["policy_type"] == "Custom" ? "TLSv1_2" : null
  }
  dynamic "ssl_certificate" {
    for_each = var.ssl_certificate_config
    content {
      name                = ssl_certificate.value.ssl_certificate_name
      #data                = ssl_certificate.value.secret_id ? null : "${filebase64(ssl_certificate.value.ssl.ssl_cert_path)}"
      #data = "${base64encode(file("/Users/thirumaldage/Desktop/cert.crt"))}"
      #key_vault_secret_id = ssl_certificate.key_vault_secret_id ? data.azurerm_key_valut_certificate.certificate[ssl_certificate.key].secret_id : null
      key_vault_secret_id = data.azurerm_key_vault_certificate.certificate.secret_id
    }
  }

 identity {
    type         = "UserAssigned"
    #identity_ids = [azurerm_user_assigned_identity.identity.id]
    identity_ids = [data.azurerm_user_assigned_identity.identity.id]
  }
  dynamic "http_listener" {
    for_each = var.http_routing_config
    content {
      name                           = http_listener.value.http_listener_name
      host_name                      = http_listener.value.http_listener_host_name
      frontend_ip_configuration_name = local.private_frontend_ip_configuration_name
      frontend_port_name             = http_listener.value.frontend_port_name
      protocol                       = "Https"
      ssl_certificate_name           = http_listener.value.ssl_certificate_name
      require_sni                    = true
    }
  }
  dynamic "request_routing_rule" {
    for_each = var.http_routing_config
    content {
      name                       = request_routing_rule.key
      rule_type                  = "Basic"
      http_listener_name         = request_routing_rule.value.http_listener_name
      backend_address_pool_name  = request_routing_rule.value.backend_address_pool_name
      priority                   = request_routing_rule.value.priority
      backend_http_settings_name = "${request_routing_rule.key}-backend-setting"
      rewrite_rule_set_name      = request_routing_rule.value.rewrite_rule_set_name
    }
  }
  dynamic "trusted_root_certificate" {
    for_each = var.trusted_root_certificate
    content {
      name = trusted_root_certificate.key
      data = base64encode(file("${trusted_root_certificate.value}"))
    }
  }

Answer 1

GOT IT....

As I have given the name of backend_http_setting_name = demo-http-settings and giving it as demo-http-setting in request_routing_rule. It will error out as it can't find the backend http setting.

Thank you!