Add max and min capacity for future autoscaling options

CDCgov · Oct 17, 2024 · e0393f9 · e0393f9
1 parent 27d72e8
commit e0393f9
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Showing 3 changed files with 22 additions and 8 deletions.
diff --git a/terraform/modules/ecs/README.md b/terraform/modules/ecs/README.md
@@ -26,6 +26,8 @@ No modules.
 | [aws_alb_listener.http](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/alb_listener) | resource |
 | [aws_alb_listener_rule.this](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/alb_listener_rule) | resource |
 | [aws_alb_target_group.this](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/alb_target_group) | resource |
+| [aws_appautoscaling_policy.ecs_policy](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/appautoscaling_policy) | resource |
+| [aws_appautoscaling_target.this](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/appautoscaling_target) | resource |
 | [aws_appmesh_mesh.this](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/appmesh_mesh) | resource |
 | [aws_appmesh_virtual_node.this](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/appmesh_virtual_node) | resource |
 | [aws_cloudwatch_log_group.ecs_cloudwatch_logs](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/cloudwatch_log_group) | resource |

diff --git a/terraform/modules/ecs/_local.tf b/terraform/modules/ecs/_local.tf
@@ -14,7 +14,8 @@ locals {
       short_name     = "ecrv",
       fargate_cpu    = 1024,
       fargate_memory = 2048,
-      app_count      = 1
+      min_capacity   = 1
+      max_capacity   = 5
       app_image      = var.disable_ecr == false ? "${terraform.workspace}-ecr-viewer" : "ecr-viewer",
       app_version    = var.phdi_version,
       container_port = 3000,
@@ -60,7 +61,8 @@ locals {
       short_name     = "fhirc",
       fargate_cpu    = 1024,
       fargate_memory = 2048,
-      app_count      = 1
+      min_capacity   = 1
+      max_capacity   = 5
       app_image      = var.disable_ecr == false ? "${terraform.workspace}-fhir-converter" : "fhir-converter",
       app_version    = var.phdi_version,
       container_port = 8080,
@@ -73,7 +75,8 @@ locals {
       short_name     = "inge",
       fargate_cpu    = 1024,
       fargate_memory = 2048,
-      app_count      = 1
+      min_capacity   = 1
+      max_capacity   = 5
       app_image      = var.disable_ecr == false ? "${terraform.workspace}-ingestion" : "ingestion",
       app_version    = var.phdi_version,
       container_port = 8080,
@@ -86,7 +89,8 @@ locals {
       short_name     = "vali",
       fargate_cpu    = 1024,
       fargate_memory = 2048,
-      app_count      = 1
+      min_capacity   = 1
+      max_capacity   = 5
       app_image      = var.disable_ecr == false ? "${terraform.workspace}-validation" : "validation",
       app_version    = var.phdi_version,
       container_port = 8080,
@@ -99,7 +103,8 @@ locals {
       short_name     = "trigcr",
       fargate_cpu    = 1024,
       fargate_memory = 2048,
-      app_count      = 1
+      min_capacity   = 1
+      max_capacity   = 5
       app_image      = var.disable_ecr == false ? "${terraform.workspace}-trigger-code-reference" : "trigger-code-reference",
       app_version    = var.phdi_version,
       container_port = 8080,
@@ -112,7 +117,8 @@ locals {
       short_name     = "msgp",
       fargate_cpu    = 1024,
       fargate_memory = 2048,
-      app_count      = 1
+      min_capacity   = 1
+      max_capacity   = 5
       app_image      = var.disable_ecr == false ? "${terraform.workspace}-message-parser" : "message-parser",
       app_version    = var.phdi_version,
       container_port = 8080,
@@ -125,7 +131,8 @@ locals {
       short_name     = "orch",
       fargate_cpu    = 1024,
       fargate_memory = 2048,
-      app_count      = 1
+      min_capacity   = 1
+      max_capacity   = 5
       app_image      = var.disable_ecr == false ? "${terraform.workspace}-orchestration" : "orchestration",
       app_version    = var.phdi_version,
       container_port = 8080,

diff --git a/terraform/modules/ecs/ecs.tf b/terraform/modules/ecs/ecs.tf
@@ -43,7 +43,7 @@ resource "aws_ecs_service" "this" {
   name            = each.key
   cluster         = aws_ecs_cluster.dibbs_app_cluster.id
   task_definition = each.value.arn
-  desired_count   = local.service_data[each.key].app_count
+  desired_count   = local.service_data[each.key].min_capacity
   launch_type     = "FARGATE"
 
   scheduling_strategy = "REPLICA"
@@ -108,5 +108,10 @@ resource "aws_ecs_service" "this" {
       }
     }
   }
+
+  lifecycle {
+    ignore_changes = [desired_count]
+  }
+
   tags = local.tags
 }