From 4326c294068443a72c9a40a115dd5fcf7255aa70 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andrei=20Ioni=C8=9B=C4=83?= <hi@andrei.io>
Date: Sat, 7 Dec 2024 00:20:48 +0200
Subject: [PATCH] infra: scale down (#160)

---
 terraform/database.tf        | 8 ++++----
 terraform/ecs.tf             | 8 ++++----
 terraform/elasticache.tf     | 2 +-
 terraform/service_app.tf     | 8 ++++----
 terraform/service_horizon.tf | 4 ++--
 5 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/terraform/database.tf b/terraform/database.tf
index 4da98df..130c0c0 100644
--- a/terraform/database.tf
+++ b/terraform/database.tf
@@ -1,11 +1,11 @@
 resource "aws_db_instance" "main" {
   identifier          = local.namespace
   db_name             = "rezultatevot"
-  instance_class      = var.env == "production" ? "db.m7g.4xlarge" : "db.t4g.micro"
+  instance_class      = "db.t4g.micro"
   publicly_accessible = false
   multi_az            = true
   deletion_protection = true
-  monitoring_interval = 60
+  #   monitoring_interval = 60
 
   #   availability_zone = local.availability_zone
 
@@ -35,8 +35,8 @@ resource "aws_db_instance" "main" {
 
   maintenance_window = "Tue:04:45-Tue:06:00"
 
-  performance_insights_enabled          = true
-  performance_insights_retention_period = 7
+  #   performance_insights_enabled          = false
+  #   performance_insights_retention_period = 7
 
   db_subnet_group_name   = aws_db_subnet_group.db_subnet_group.name
   vpc_security_group_ids = [aws_security_group.database.id]
diff --git a/terraform/ecs.tf b/terraform/ecs.tf
index 8df73d1..b5bb5d4 100644
--- a/terraform/ecs.tf
+++ b/terraform/ecs.tf
@@ -5,13 +5,13 @@ module "ecs_cluster" {
   vpc_id                = aws_vpc.main.id
   ecs_subnets           = aws_subnet.private.*.id # ecs_subnets = [aws_subnet.private.0.id]
   security_groups       = [aws_security_group.ecs.id]
-  default_instance_type = "c6a.xlarge"
+  default_instance_type = "t3a.micro"
   instance_types = {
-    "c6a.xlarge" = ""
+    "t3a.micro" = ""
   }
 
-  min_size                  = 3
-  max_size                  = 24
+  min_size                  = 1
+  max_size                  = 3
   minimum_scaling_step_size = 1
   maximum_scaling_step_size = 1
 
diff --git a/terraform/elasticache.tf b/terraform/elasticache.tf
index d7b40fd..af6aae1 100644
--- a/terraform/elasticache.tf
+++ b/terraform/elasticache.tf
@@ -1,7 +1,7 @@
 resource "aws_elasticache_cluster" "main" {
   cluster_id           = local.namespace
   engine               = "redis"
-  node_type            = "cache.r7g.xlarge"
+  node_type            = "cache.t4g.small"
   num_cache_nodes      = 1
   parameter_group_name = "default.redis7"
   engine_version       = "7.0"
diff --git a/terraform/service_app.tf b/terraform/service_app.tf
index bc84798..f11f556 100644
--- a/terraform/service_app.tf
+++ b/terraform/service_app.tf
@@ -7,8 +7,8 @@ module "ecs_app" {
 
   name         = "${local.namespace}-app"
   cluster_name = module.ecs_cluster.cluster_name
-  min_capacity = 2
-  max_capacity = 18
+  min_capacity = 1
+  max_capacity = 3
 
   deployment_minimum_healthy_percent = 50
   deployment_maximum_percent         = 200
@@ -25,8 +25,8 @@ module "ecs_app" {
   lb_health_check_enabled = true
   lb_path                 = "/up"
 
-  container_memory_soft_limit = 768
-  container_memory_hard_limit = 1536
+  container_memory_soft_limit = 512
+  container_memory_hard_limit = 1024
 
   log_group_name                 = module.ecs_cluster.log_group_name
   service_discovery_namespace_id = module.ecs_cluster.service_discovery_namespace_id
diff --git a/terraform/service_horizon.tf b/terraform/service_horizon.tf
index c88e93f..a9a2d92 100644
--- a/terraform/service_horizon.tf
+++ b/terraform/service_horizon.tf
@@ -7,8 +7,8 @@ module "ecs_horizon" {
 
   name         = "${local.namespace}-horizon"
   cluster_name = module.ecs_cluster.cluster_name
-  min_capacity = 1
-  max_capacity = 1
+  min_capacity = 0
+  max_capacity = 0
 
   deployment_minimum_healthy_percent = 0
   deployment_maximum_percent         = 100