Merge pull request #331 from alphagov/auth-1316-ecs-sizing

AUTH-1316: Bring ECS sizing in line with PaaS deployment

Author: chrisclayson

ci/terraform/ecs.tf

@@ -10,6 +10,9 @@ resource "aws_ecs_service" "account_management_ecs_service" {
   desired_count   = var.account_management_ecs_desired_count
   launch_type     = "FARGATE"
 
+  deployment_minimum_healthy_percent = var.deployment_min_healthy_percent
+  deployment_maximum_percent         = var.deployment_max_percent
+
   network_configuration {
     security_groups = [
       local.allow_egress_security_group_id,

ci/terraform/production.tfvars

@@ -4,3 +4,5 @@ your_account_url    = "https://www.gov.uk/account/home"
 redis_node_size     = "cache.m4.xlarge"
 common_state_bucket = "digital-identity-prod-tfstate"
 public_access       = false
+
+account_management_ecs_desired_count = 4

ci/terraform/variables.tf

@@ -137,4 +137,12 @@ variable "logging_endpoint_enabled" {
 variable "public_access" {
   type    = bool
   default = false
-}
+}
+
+variable "deployment_min_healthy_percent" {
+  default = 50
+}
+
+variable "deployment_max_percent" {
+  default = 100
+}