[CES-607] Add pm2 support to AppService modules

infra/modules/azure_app_service/README.md

@@ -39,6 +39,7 @@
 | <a name="input_health_check_path"></a> [health\_check\_path](#input\_health\_check\_path) | Endpoint where health probe is exposed | `string` | n/a | yes |
 | <a name="input_java_version"></a> [java\_version](#input\_java\_version) | Java version to use | `string` | `17` | no |
 | <a name="input_node_version"></a> [node\_version](#input\_node\_version) | Node version to use | `number` | `20` | no |
+| <a name="input_pm2_startup_file_name"></a> [pm2\_startup\_file\_name](#input\_pm2\_startup\_file\_name) | (Optional) Use this variable to enable PM2. The specified file is used as PM2 process entry point | `string` | `null` | no |
 | <a name="input_private_dns_zone_resource_group_name"></a> [private\_dns\_zone\_resource\_group\_name](#input\_private\_dns\_zone\_resource\_group\_name) | (Optional) The name of the resource group holding private DNS zone to use for private endpoints. Default is Virtual Network resource group | `string` | `null` | no |
 | <a name="input_resource_group_name"></a> [resource\_group\_name](#input\_resource\_group\_name) | Resource group to deploy resources to | `string` | n/a | yes |
 | <a name="input_slot_app_settings"></a> [slot\_app\_settings](#input\_slot\_app\_settings) | Staging slot application settings | `map(string)` | `{}` | no |

infra/modules/azure_app_service/app_service.tf

@@ -21,6 +21,8 @@ resource "azurerm_linux_web_app" "this" {
     health_check_eviction_time_in_min = 2
     ip_restriction_default_action     = "Deny"
 
+    app_command_line = local.app_service.command_line
+
     application_stack {
       node_version = var.stack == "node" ? "${var.node_version}-lts" : null
       java_version = var.stack == "java" ? var.java_version : null

infra/modules/azure_app_service/app_service_slot.tf

@@ -21,6 +21,8 @@ resource "azurerm_linux_web_app_slot" "this" {
     health_check_eviction_time_in_min = 2
     ip_restriction_default_action     = "Deny"
 
+    app_command_line = local.app_service.command_line
+
     application_stack {
       node_version = var.stack == "node" ? "${var.node_version}-lts" : null
       java_version = var.stack == "java" ? var.java_version : null

infra/modules/azure_app_service/locals.tf

@@ -16,6 +16,7 @@ locals {
     sku_name               = local.sku_name_mapping[local.tier]
     zone_balancing_enabled = local.tier != "s"
     is_slot_enabled        = local.tier == "s" ? 0 : 1
+    command_line           = var.pm2_startup_file_name == null ? null : "pm2 start ${var.pm2_startup_file_name} -i max --no-daemon"
   }
 
   app_service_slot = {

infra/modules/azure_app_service/variables.tf

@@ -129,3 +129,9 @@ variable "subnet_service_endpoints" {
   description = "(Optional) Enable service endpoints for the underlying subnet. This variable should be set only if function dependencies do not use private endpoints"
   default     = null
 }
+
+variable "pm2_startup_file_name" {
+  type        = string
+  default     = null
+  description = "(Optional) Use this variable to enable PM2. The specified file is used as PM2 process entry point"
+}

infra/modules/azure_app_service_exposed/README.md

@@ -36,6 +36,7 @@ This module is used to create an Azure App Service, allowing it to be configured
 | <a name="input_health_check_path"></a> [health\_check\_path](#input\_health\_check\_path) | Endpoint where health probe is exposed | `string` | n/a | yes |
 | <a name="input_java_version"></a> [java\_version](#input\_java\_version) | Java version to use | `string` | `17` | no |
 | <a name="input_node_version"></a> [node\_version](#input\_node\_version) | Node version to use | `number` | `20` | no |
+| <a name="input_pm2_startup_file_name"></a> [pm2\_startup\_file\_name](#input\_pm2\_startup\_file\_name) | (Optional) Use this variable to enable PM2. The specified file is used as PM2 process entry point | `string` | `null` | no |
 | <a name="input_resource_group_name"></a> [resource\_group\_name](#input\_resource\_group\_name) | Resource group to deploy resources to | `string` | n/a | yes |
 | <a name="input_slot_app_settings"></a> [slot\_app\_settings](#input\_slot\_app\_settings) | Staging slot application settings | `map(string)` | `{}` | no |
 | <a name="input_stack"></a> [stack](#input\_stack) | n/a | `string` | `"node"` | no |

infra/modules/azure_app_service_exposed/app_service.tf

@@ -19,6 +19,8 @@ resource "azurerm_linux_web_app" "this" {
     health_check_path                 = var.health_check_path
     health_check_eviction_time_in_min = 2
 
+    app_command_line = local.app_service.command_line
+
     application_stack {
       node_version = var.stack == "node" ? "${var.node_version}-lts" : null
       java_version = var.stack == "java" ? var.java_version : null

infra/modules/azure_app_service_exposed/app_service_slot.tf

@@ -19,6 +19,8 @@ resource "azurerm_linux_web_app_slot" "this" {
     health_check_path                 = var.health_check_path
     health_check_eviction_time_in_min = 2
 
+    app_command_line = local.app_service.command_line
+
     application_stack {
       node_version = var.stack == "node" ? "${var.node_version}-lts" : null
       java_version = var.stack == "java" ? var.java_version : null

infra/modules/azure_app_service_exposed/locals.tf

@@ -9,6 +9,7 @@ locals {
     zone_balancing_enabled = local.tier != "s" && local.tier != "xs"
     is_slot_enabled        = local.tier == "s" || local.tier == "xs" ? 0 : 1
     always_on              = local.tier == "xs" ? false : true
+    command_line           = var.pm2_startup_file_name == null ? null : "pm2 start ${var.pm2_startup_file_name} -i max --no-daemon"
   }
 
   application_insights = {

infra/modules/azure_app_service_exposed/variables.tf

@@ -98,3 +98,9 @@ variable "sticky_app_setting_names" {
   description = "(Optional) A list of application setting names that are not swapped between slots"
   default     = []
 }
+
+variable "pm2_startup_file_name" {
+  type        = string
+  default     = null
+  description = "(Optional) Use this variable to enable PM2. The specified file is used as PM2 process entry point"
+}