Merge pull request #4 from kesarevs/alb-idle-timeout

Allow alb idle timeout customisation

README.md

@@ -25,6 +25,7 @@ module "loadbalancer" {
   https_ports        = [443]
   http_ports         = [80]
   public_subnets     = [module.vpc.subnet_public_1, module.vpc.subnet_public_2]
+  idle_timeout       = 60
   certificate_arn    = module.alb_certificate.arn // see https://github.com/jetbrains-infra/terraform-aws-acm-certificate
   access_log_bucket  = module.s3_logs.bucket_id // see https://github.com/jetbrains-infra/terraform-aws-s3-bucket-for-logs
   access_log_prefix  = module.s3_logs.alb_logs_path

alb.tf

@@ -3,6 +3,7 @@ resource "aws_alb" "ingress" {
   internal        = local.internal
   security_groups = [aws_security_group.alb.id]
   subnets         = local.public_subnets
+  idle_timeout    = local.idle_timeout
 
   dynamic "access_logs" {
     for_each = local.access_logs_enable ? [""] : []

variables.tf

@@ -44,6 +44,11 @@ variable "access_log_prefix" {
   default     = ""
 }
 
+variable "idle_timeout" {
+  description = "Connection idle timeout"
+  default     = 60
+}
+
 data "aws_subnet" "public_1" {
   id = local.public_subnets[0]
 }
@@ -59,6 +64,7 @@ locals {
   vpc_id              = data.aws_subnet.public_1.vpc_id
   target_cidr_blocks  = var.target_cidr_blocks
   alb_certificate_arn = var.certificate_arn
+  idle_timeout        = var.idle_timeout
 
   // magic to get map of port to listener arn pairs
   listener_http_ports  = aws_alb_listener.http.*.port