[CES-124] Add another session manager instance

src/domains/citizen-auth-app/01_network.tf

@@ -138,6 +138,28 @@ module "session_manager_snet" {
   }
 }
 
+module "session_manager_snet_04" {
+  source               = "github.com/pagopa/terraform-azurerm-v3//subnet?ref=v8.22.0"
+  name                 = format("%s-session-manager-snet-04", local.common_project)
+  address_prefixes     = var.cidr_subnet_session_manager_04
+  resource_group_name  = data.azurerm_virtual_network.common_vnet.resource_group_name
+  virtual_network_name = data.azurerm_virtual_network.common_vnet.name
+
+  private_endpoint_network_policies_enabled = true
+
+  service_endpoints = [
+    "Microsoft.Web",
+  ]
+
+  delegation = {
+    name = "default"
+    service_delegation = {
+      name    = "Microsoft.Web/serverFarms"
+      actions = ["Microsoft.Network/virtualNetworks/subnets/action"]
+    }
+  }
+}
+
 #########################
 # Private Endpoints
 #########################
@@ -163,6 +185,27 @@ resource "azurerm_private_endpoint" "session_manager_sites" {
   tags = var.tags
 }
 
+resource "azurerm_private_endpoint" "session_manager_sites_04" {
+  name                = "${local.common_project}-session-manager-app-pep-04"
+  location            = var.location
+  resource_group_name = azurerm_resource_group.session_manager_rg_weu.name
+  subnet_id           = data.azurerm_subnet.private_endpoints_subnet.id
+
+  private_service_connection {
+    name                           = "${local.common_project}-session-manager-app-pep-04"
+    private_connection_resource_id = module.session_manager_weu_04.id
+    is_manual_connection           = false
+    subresource_names              = ["sites"]
+  }
+
+  private_dns_zone_group {
+    name                 = "private-dns-zone-group"
+    private_dns_zone_ids = [data.azurerm_private_dns_zone.privatelink_azurewebsites_net.id]
+  }
+
+  tags = var.tags
+}
+
 resource "azurerm_private_endpoint" "staging_session_manager_sites" {
   name                = "${local.common_project}-session-manager-staging-app-pep-01"
   location            = var.location
@@ -184,6 +227,26 @@ resource "azurerm_private_endpoint" "staging_session_manager_sites" {
   tags = var.tags
 }
 
+resource "azurerm_private_endpoint" "staging_session_manager_sites_04" {
+  name                = "${local.common_project}-session-manager-staging-app-pep-04"
+  location            = var.location
+  resource_group_name = azurerm_resource_group.session_manager_rg_weu.name
+  subnet_id           = data.azurerm_subnet.private_endpoints_subnet.id
+
+  private_service_connection {
+    name                           = "${local.common_project}-session-manager-staging-app-pep-04"
+    private_connection_resource_id = module.session_manager_weu_04.id
+    is_manual_connection           = false
+    subresource_names              = ["sites-${module.session_manager_weu_staging_04.name}"]
+  }
+
+  private_dns_zone_group {
+    name                 = "private-dns-zone-group"
+    private_dns_zone_ids = [data.azurerm_private_dns_zone.privatelink_azurewebsites_net.id]
+  }
+
+  tags = var.tags
+}
 
 data "azurerm_nat_gateway" "nat_gateway" {
   name                = "${local.product}-natgw"
@@ -195,6 +258,11 @@ resource "azurerm_subnet_nat_gateway_association" "session_manager_snet" {
   subnet_id      = module.session_manager_snet.id
 }
 
+resource "azurerm_subnet_nat_gateway_association" "session_manager_snet_04" {
+  nat_gateway_id = data.azurerm_nat_gateway.nat_gateway.id
+  subnet_id      = module.session_manager_snet_04.id
+}
+
 data "azurerm_resource_group" "rg_external" {
   name = format("%s-rg-external", local.product)
 }

src/domains/citizen-auth-app/08_session_manager.tf

@@ -87,7 +87,7 @@ resource "azurerm_resource_group" "session_manager_rg_weu" {
 
 locals {
 
-  app_name_weu = format("%s-session-manager-app-03", local.common_project)
+  app_name_weu = format("%s-session-manager-app", local.common_project)
 
   app_settings_common = {
     WEBSITES_ENABLE_APP_SERVICE_STORAGE = false
@@ -228,7 +228,7 @@ module "session_manager_weu" {
   sku_name               = var.session_manager_plan_sku_name
 
   # App service
-  name                = local.app_name_weu
+  name                = "${local.app_name_weu}-03"
   resource_group_name = azurerm_resource_group.session_manager_rg_weu.name
   location            = var.location
 
@@ -249,7 +249,7 @@ module "session_manager_weu" {
   app_settings = merge(
     local.app_settings_common,
     {
-      APPINSIGHTS_CLOUD_ROLE_NAME = local.app_name_weu
+      APPINSIGHTS_CLOUD_ROLE_NAME = "${local.app_name_weu}-03"
     }
   )
   sticky_settings = concat(["APPINSIGHTS_CLOUD_ROLE_NAME"])
@@ -269,6 +269,48 @@ module "session_manager_weu" {
   tags = var.tags
 }
 
+module "session_manager_weu_04" {
+  source = "github.com/pagopa/terraform-azurerm-v3//app_service?ref=v8.28.1"
+
+  # App service plan
+  plan_type              = "internal"
+  plan_name              = format("%s-session-manager-asp-04", local.common_project)
+  zone_balancing_enabled = true
+  sku_name               = var.session_manager_plan_sku_name
+
+  # App service
+  name                = "${local.app_name_weu}-04"
+  resource_group_name = azurerm_resource_group.session_manager_rg_weu.name
+  location            = var.location
+
+  always_on                    = true
+  node_version                 = "20-lts"
+  app_command_line             = ""
+  health_check_path            = "/healthcheck"
+  health_check_maxpingfailures = 2
+
+  auto_heal_enabled = true
+  auto_heal_settings = {
+    startup_time           = "00:05:00"
+    slow_requests_count    = 50
+    slow_requests_interval = "00:01:00"
+    slow_requests_time     = "00:00:10"
+  }
+
+  app_settings = merge(
+    local.app_settings_common,
+    {
+      APPINSIGHTS_CLOUD_ROLE_NAME = "${local.app_name_weu}-04"
+    }
+  )
+  sticky_settings = concat(["APPINSIGHTS_CLOUD_ROLE_NAME"])
+
+  subnet_id        = module.session_manager_snet_04.id
+  vnet_integration = true
+
+  tags = var.tags
+}
+
 ## staging slot
 module "session_manager_weu_staging" {
   source = "github.com/pagopa/terraform-azurerm-v3//app_service_slot?ref=v8.28.1"
@@ -315,3 +357,39 @@ module "session_manager_weu_staging" {
 
   tags = var.tags
 }
+
+module "session_manager_weu_staging_04" {
+  source = "github.com/pagopa/terraform-azurerm-v3//app_service_slot?ref=v8.28.1"
+
+  app_service_id   = module.session_manager_weu_04.id
+  app_service_name = module.session_manager_weu_04.name
+
+  name                = "staging"
+  resource_group_name = azurerm_resource_group.session_manager_rg_weu.name
+  location            = var.location
+
+  always_on         = true
+  node_version      = "20-lts"
+  app_command_line  = ""
+  health_check_path = "/healthcheck"
+
+  auto_heal_enabled = true
+  auto_heal_settings = {
+    startup_time           = "00:05:00"
+    slow_requests_count    = 50
+    slow_requests_interval = "00:01:00"
+    slow_requests_time     = "00:00:10"
+  }
+
+  app_settings = merge(
+    local.app_settings_common,
+    {
+      APPINSIGHTS_CLOUD_ROLE_NAME = "${module.session_manager_weu.name}-staging"
+    }
+  )
+
+  subnet_id        = module.session_manager_snet_04.id
+  vnet_integration = true
+
+  tags = var.tags
+}

src/domains/citizen-auth-app/99_variables.tf

@@ -241,6 +241,11 @@ variable "cidr_subnet_session_manager" {
   description = "Session manager app service address space."
 }
 
+variable "cidr_subnet_session_manager_04" {
+  type        = list(string)
+  description = "Session manager app service instance 4 address space."
+}
+
 variable "session_manager_plan_sku_name" {
   description = "App service plan sku name"
   type        = string

src/domains/citizen-auth-app/README.md

@@ -31,8 +31,11 @@
 | <a name="module_function_profile_staging_slot"></a> [function\_profile\_staging\_slot](#module\_function\_profile\_staging\_slot) | git::https://github.com/pagopa/terraform-azurerm-v3.git//function_app_slot | v8.44.0 |
 | <a name="module_locked_profiles_storage"></a> [locked\_profiles\_storage](#module\_locked\_profiles\_storage) | github.com/pagopa/terraform-azurerm-v3//storage_account | v8.27.0 |
 | <a name="module_session_manager_snet"></a> [session\_manager\_snet](#module\_session\_manager\_snet) | github.com/pagopa/terraform-azurerm-v3//subnet | v8.22.0 |
+| <a name="module_session_manager_snet_04"></a> [session\_manager\_snet\_04](#module\_session\_manager\_snet\_04) | github.com/pagopa/terraform-azurerm-v3//subnet | v8.22.0 |
 | <a name="module_session_manager_weu"></a> [session\_manager\_weu](#module\_session\_manager\_weu) | github.com/pagopa/terraform-azurerm-v3//app_service | v8.28.1 |
+| <a name="module_session_manager_weu_04"></a> [session\_manager\_weu\_04](#module\_session\_manager\_weu\_04) | github.com/pagopa/terraform-azurerm-v3//app_service | v8.28.1 |
 | <a name="module_session_manager_weu_staging"></a> [session\_manager\_weu\_staging](#module\_session\_manager\_weu\_staging) | github.com/pagopa/terraform-azurerm-v3//app_service_slot | v8.28.1 |
+| <a name="module_session_manager_weu_staging_04"></a> [session\_manager\_weu\_staging\_04](#module\_session\_manager\_weu\_staging\_04) | github.com/pagopa/terraform-azurerm-v3//app_service_slot | v8.28.1 |
 | <a name="module_tests"></a> [tests](#module\_tests) | ../tests | n/a |
 
 ## Resources
@@ -54,11 +57,13 @@
 | [azurerm_private_endpoint.function_profile_itn_sites](https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/private_endpoint) | resource |
 | [azurerm_private_endpoint.locked_profiles_storage_table](https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/private_endpoint) | resource |
 | [azurerm_private_endpoint.session_manager_sites](https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/private_endpoint) | resource |
+| [azurerm_private_endpoint.session_manager_sites_04](https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/private_endpoint) | resource |
 | [azurerm_private_endpoint.staging_function_fast_login_itn_sites](https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/private_endpoint) | resource |
 | [azurerm_private_endpoint.staging_function_lollipop_itn_sites](https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/private_endpoint) | resource |
 | [azurerm_private_endpoint.staging_function_profile_async_itn_sites](https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/private_endpoint) | resource |
 | [azurerm_private_endpoint.staging_function_profile_itn_sites](https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/private_endpoint) | resource |
 | [azurerm_private_endpoint.staging_session_manager_sites](https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/private_endpoint) | resource |
+| [azurerm_private_endpoint.staging_session_manager_sites_04](https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/private_endpoint) | resource |
 | [azurerm_resource_group.fast_login_rg](https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/resource_group) | resource |
 | [azurerm_resource_group.fast_login_rg_itn](https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/resource_group) | resource |
 | [azurerm_resource_group.function_profile_async_rg](https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/resource_group) | resource |
@@ -68,6 +73,7 @@
 | [azurerm_storage_table.locked_profiles](https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/storage_table) | resource |
 | [azurerm_subnet.lollipop_snet_itn](https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/subnet) | resource |
 | [azurerm_subnet_nat_gateway_association.session_manager_snet](https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/subnet_nat_gateway_association) | resource |
+| [azurerm_subnet_nat_gateway_association.session_manager_snet_04](https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/subnet_nat_gateway_association) | resource |
 | [azuread_group.adgroup_admin](https://registry.terraform.io/providers/hashicorp/azuread/latest/docs/data-sources/group) | data source |
 | [azuread_group.adgroup_developers](https://registry.terraform.io/providers/hashicorp/azuread/latest/docs/data-sources/group) | data source |
 | [azuread_group.adgroup_externals](https://registry.terraform.io/providers/hashicorp/azuread/latest/docs/data-sources/group) | data source |
@@ -173,6 +179,7 @@
 | <a name="input_cidr_subnet_profile_async_itn"></a> [cidr\_subnet\_profile\_async\_itn](#input\_cidr\_subnet\_profile\_async\_itn) | Function app address space. | `list(string)` | n/a | yes |
 | <a name="input_cidr_subnet_profile_itn"></a> [cidr\_subnet\_profile\_itn](#input\_cidr\_subnet\_profile\_itn) | Function app address space. | `list(string)` | n/a | yes |
 | <a name="input_cidr_subnet_session_manager"></a> [cidr\_subnet\_session\_manager](#input\_cidr\_subnet\_session\_manager) | Session manager app service address space. | `list(string)` | n/a | yes |
+| <a name="input_cidr_subnet_session_manager_04"></a> [cidr\_subnet\_session\_manager\_04](#input\_cidr\_subnet\_session\_manager\_04) | Session manager app service instance 4 address space. | `list(string)` | n/a | yes |
 | <a name="input_dns_zone_io"></a> [dns\_zone\_io](#input\_dns\_zone\_io) | The dns subdomain. | `string` | `null` | no |
 | <a name="input_domain"></a> [domain](#input\_domain) | n/a | `string` | n/a | yes |
 | <a name="input_enable_azdoa"></a> [enable\_azdoa](#input\_enable\_azdoa) | Specifies Azure Devops Agent enabling | `bool` | `true` | no |

src/domains/citizen-auth-app/env/weu-prod01/terraform.tfvars

@@ -81,7 +81,8 @@ function_profile_async_autoscale_maximum = 30
 function_profile_async_autoscale_default = 10
 
 # Session manager
-cidr_subnet_session_manager = ["10.0.149.0/26"]
+cidr_subnet_session_manager    = ["10.0.149.0/26"]
+cidr_subnet_session_manager_04 = ["10.0.149.64/26"]
 session_manager_autoscale_settings = {
   autoscale_minimum = 3
   autoscale_default = 3