From cf2be3f9cdeaf050377cf6f1241fafb3d51c38cc Mon Sep 17 00:00:00 2001
From: aditya dubey <aditya.d2676@gmail.com>
Date: Sun, 11 Jan 2026 12:01:55 +0530
Subject: [PATCH] Fix: Connect ECS services to ALB target groups to resolve 503
 error

---
 terraform/aws/ecs.tf | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/terraform/aws/ecs.tf b/terraform/aws/ecs.tf
index 98f640907..d0246c413 100644
--- a/terraform/aws/ecs.tf
+++ b/terraform/aws/ecs.tf
@@ -45,6 +45,14 @@ resource "aws_ecs_service" "backend" {
     security_groups  = [aws_security_group.ecs_tasks_sg.id]
     assign_public_ip = true
   }
+
+  load_balancer {
+    target_group_arn = aws_lb_target_group.backend.arn
+    container_name   = "backend"
+    container_port   = 8000
+  }
+
+  depends_on = [aws_lb_listener.http]
 }
 
 resource "aws_ecs_task_definition" "frontend" {
@@ -63,7 +71,7 @@ resource "aws_ecs_task_definition" "frontend" {
       environment = [
         {
           name  = "NEXT_PUBLIC_API_URL"
-          value = "http://localhost:8000/api" # Placeholder since no ALB
+          value = "http://${aws_lb.main.dns_name}"
         }
       ]
       portMappings = [
@@ -96,6 +104,14 @@ resource "aws_ecs_service" "frontend" {
     security_groups  = [aws_security_group.ecs_tasks_sg.id]
     assign_public_ip = true
   }
+
+  load_balancer {
+    target_group_arn = aws_lb_target_group.frontend.arn
+    container_name   = "frontend"
+    container_port   = 3000
+  }
+
+  depends_on = [aws_lb_listener.http]
 }
 
 resource "aws_cloudwatch_log_group" "backend" {