DX - Azure Container APP

Overview

This Terraform module deploys an Azure Container App in a provided Azure Container App Environment. It supports System Assigned Managed Identity and configurable scaling options.

Resources Created

• azurerm_container_app: Deploys a containerized application in the specified environment.
• azurerm_private_dns_a_record: Creates a private DNS A record for the container app.

Features

• Supports different templates configuration via a map (container_app_templates).
• With tier specification (xs, s, m, or l) creates container app with different replicas, CPU, and memory settings:

"xs" = {
  cpu    = 0.25
  memory = "0.5Gi"
  replicas = {
    min = 0
    max = 1
  }
}
"s" = {
  cpu    = 0.5
  memory = "1Gi"
  replicas = {
    min = 1
    max = 1
  }
}
"m" = {
  cpu    = 1.25
  memory = "2.5Gi"
  replicas = {
    min = 1
    max = 2
  }
}
"l" = {
  cpu    = 2
  memory = "4Gi"
  replicas = {
    min = 2
    max = 4
  }
}

• Managed Identity (System Assigned) for secure authentication.
• Probes for liveness, readiness, and startup to ensure container health.

Requirements

Name	Version
azurerm	~> 4

Modules

Name	Source	Version
naming_convention	pagopa/dx-azure-naming-convention/azurerm	~> 0.0

Resources

Name	Type
azurerm_container_app.this	resource

Inputs

Name	Description	Type	Default	Required
container_app_environment_id	The container app environemnt id.	string	n/a	yes
container_app_templates	List of container app templates	list(object({ image = string name = optional(string, "") app_settings = optional(map(string), {}) liveness_probe = optional(object({ failure_count_threshold = optional(number, 5) header = optional(object({ name = string value = string })) host = optional(string) initial_delay = optional(number, 1) interval_seconds = optional(number, 10) path = optional(string) port = optional(number, 8080) timeout = optional(number, 5) transport = optional(string, "HTTP") }), {}) readiness_probe = optional(object({ failure_count_threshold = optional(number, 10) header = optional(object({ name = string value = string })) host = optional(string) interval_seconds = optional(number, 10) path = optional(string) port = optional(number, 8080) success_count_threshold = optional(number, 3) timeout = optional(number, 5) transport = optional(string, "HTTP") }), {}) startup_probe = optional(object({ failure_count_threshold = optional(number, 30) header = optional(object({ name = string value = string })) host = optional(string) interval_seconds = optional(number, 10) path = optional(string) port = optional(number, 8080) timeout = optional(number, 5) transport = optional(string, "HTTP") }), {}) }))	n/a	yes
environment	Values which are used to generate resource names and location short names. They are all mandatory except for domain, which should not be used only in the case of a resource used by multiple domains.	object({ prefix = string env_short = string location = string domain = optional(string) app_name = string instance_number = string })	n/a	yes
resource_group_name	Resource group to deploy resources to	string	n/a	yes
revision_mode	The revision mode for the container app. Valid values are 'Single' and 'Multiple'.	string	"Multiple"	no
tags	Resources tags	map(any)	n/a	yes
target_port	The target port for the container app.	number	8080	no
tier	The offer type for the Container. Valid values are 'xs', 's', 'm' and 'l'.	string	"s"	no

Outputs

Name	Description
id	n/a
name	n/a
resource_group_name	n/a
url	n/a