PPHA-686: Adding Diagnostic settings into cae (#409)

# What is the change?

Two changes here

1.) logs_destination is now "azure-monitor" which is needed to enable
diagnostic settings on container app environment.
2.) Set what diagnotic logs to monitor.

<!-- Describe the intended changes. -->

# Why are we making this change?

As part of the Pen Test improvements to make to the environment. 

<!-- Why is this change required? What problem does it solve? -->

Author: mrlockstar

infrastructure/environments/live/variables.tfvars

@@ -27,7 +27,7 @@ projects = {
 }
 
 infra_key_vault_name = "kv-lungcs-live-inf"
-infra_key_vault_rg = "rg-hub-live-uks-bootstrap"
+infra_key_vault_rg   = "rg-hub-live-uks-bootstrap"
 
 diagnostic_settings = {
   metric_enabled = true

infrastructure/environments/nonlive/variables.tfvars

@@ -25,7 +25,7 @@ projects = {
 }
 
 infra_key_vault_name = "kv-lungcs-nonlive-inf"
-infra_key_vault_rg = "rg-hub-nonlive-uks-bootstrap"
+infra_key_vault_rg   = "rg-hub-nonlive-uks-bootstrap"
 
 diagnostic_settings = {
   metric_enabled = true

infrastructure/modules/container-apps/main.tf

@@ -11,8 +11,8 @@ module "webapp" {
     azurerm.hub = azurerm.hub
   }
 
-  name                             = "${var.app_short_name}-web-${var.environment}"
-  container_app_environment_id     = var.container_app_environment_id
+  name                         = "${var.app_short_name}-web-${var.environment}"
+  container_app_environment_id = var.container_app_environment_id
 
   # alerts
   action_group_id        = var.action_group_id

infrastructure/modules/infra/main.tf

@@ -62,13 +62,15 @@ module "container-app-environment" {
     azurerm.dns = azurerm.hub
   }
 
-  name                           = "cae-${var.environment}-uks-${var.app_short_name}"
-  resource_group_name            = azurerm_resource_group.main.name
-  internal_load_balancer_enabled = var.features.private_networking
-  log_analytics_workspace_id     = module.log_analytics_workspace_audit.id
-  vnet_integration_subnet_id     = module.container_app_subnet.id
-  private_dns_zone_rg_name       = var.features.private_networking ? "rg-hub-${var.hub}-uks-private-dns-zones" : null
-  zone_redundancy_enabled        = var.cae_zone_redundancy_enabled
+  name                                        = "cae-${var.environment}-uks-${var.app_short_name}"
+  resource_group_name                         = azurerm_resource_group.main.name
+  internal_load_balancer_enabled              = var.features.private_networking
+  log_analytics_workspace_id                  = module.log_analytics_workspace_audit.id
+  vnet_integration_subnet_id                  = module.container_app_subnet.id
+  private_dns_zone_rg_name                    = var.features.private_networking ? "rg-hub-${var.hub}-uks-private-dns-zones" : null
+  zone_redundancy_enabled                     = var.cae_zone_redundancy_enabled
+  logs_destination                            = "azure-monitor"
+  monitor_diagnostic_setting_cae_enabled_logs = ["ContainerAppConsoleLogs", "ContainerAppSystemLogs"]
 }
 
 module "app_insights_audit" {