Description

Terraform module to setup AWS ALB with required parameters.

Based on Hashicorp's ALB module. In addition can configure S3 bucket to store ALB logs, Route53 record with custom DNS name and setup security group. Added China region support.

Notes

1. Changed syntax to use Terraform 1.0
2. Added the security policy if using HTTPS externally on the load balancer.
3. Changed the Hashicorp's ALB module version from 3.5 to 6.0

Usage

module "alb" {
  source = "github.com/lean-delivery/tf-module-aws-alb"

  project     = "Project"
  environment = "dev"

  vpc_id  = "vpc-eizox8ea"
  subnets = ["subnet-sait0aiw", "subnet-op8phee4", "subnet-eego9xoo"]

  acm_cert_domain = "*.project.example.com"
  root_domain     = "example.com"

  alb_logs_lifecycle_rule_enabled = true
  alb_logs_expiration_days        = 5
}

Inputs

Name	Description	Type	Default	Required
acm_cert_domain	Domain name for which ACM certificate was created	string	``	no
cn_acm	Whether to use acm certificate in AWS China. Default set to false for backward compatibility	bool	false	no
cn_route53	Whether to use Route53 in AWS China	bool	false	no
default_http_tcp_listeners_port	Port of default HTTP listener	number	80	no
default_https_tcp_listeners_port	Port of default HTTPs listener	number	443	no
default_load_balancer_is_internal	Boolean determining if the load balancer is internal or externally facing.	bool	true	no
default_target_groups_backend_protocol	Backend protocol of default target group	string	HTTP	no
default_target_groups_port	Port of default target group	number	80	no
enable_logging	Trigger to enable ALB logging	bool	true	no
enable_subdomains	Trigger to add '*.' before ALB custom domain name	bool	false	no
environment	Environment name (used for resource naming and tagging)	string	test	no
force_destroy	Enforces destruction of S3 bucket with ALB logs	bool	true	no
lb_accout_id_per_region	-	map	<map>	no
most_recent_certificate	Triger to use most recent SSL certificate	bool	false	no
project	Project name (used for resource naming and tagging)	string	project	no
root_domain	Root domain in which custom DNS record for ALB would be created	string	``	no
subnets	A list of subnets to associate with the load balancer	list	-	yes
tags	Additional tags for resources	map	<map>	no
target_groups_health_check	Target group health check parameters	map	<map>	no
vpc_id	VPC id where the load balancer and other resources will be deployed	string	-	yes
alb_logs_expiration_days	s3 lifecycle rule expiration period	number	5	yes
alb_logs_lifecycle_rule_enabled	Enable or disable s3 lifecycle rule	bool	false	yes
alb_custom_security_group	Switch to override default-created security group	bool	false	no
alb_custom_security_group_id	Security group ID that override default-created security group	string	None	no
alb_custom_route53_record_name	Custom Route53 record name for ALB	string	None	no
listener_ssl_policy	The security policy if using HTTPS externally on the load balancer.	string	ELBSecurityPolicy-FS-1-2-Res-2020-10	no

Outputs

Name	Description
alb_custom_dns_name	The custom DNS name of the load balancer.
alb_dns_name	The DNS name of the load balancer.
alb_http_tcp_listener_arns	The ARN of the TCP and HTTP load balancer listeners created.
alb_http_tcp_listener_ids	The IDs of the TCP and HTTP load balancer listeners created.
alb_https_listener_arns	The ARNs of the HTTPS load balancer listeners created.
alb_https_listener_ids	The IDs of the load balancer listeners created.
alb_s3_logs	S3 bucket name for storing ALB logs.
alb_sg_egress	The Egress rule of security group for ALB.
alb_sg_id	The ID of security group for ALB.
alb_sg_ingress	The Ingress rule of security group for ALB.
alb_target_group_arns	ARNs of the target groups. Useful for passing to your Auto Scaling group.
alb_target_group_names	Name of the target group. Useful for passing to your CodeDeploy Deployment Group.
load_balancer_arn_suffix	ARN suffix of our load balancer - can be used with CloudWatch.
load_balancer_id	The ID and ARN of the load balancer we created.
load_balancer_zone_id	The zone_id of the load balancer to assist with creating DNS records.
root_domain_hosted_zone_id	-
target_group_arn_suffixes	ARN suffixes of our target groups - can be used with CloudWatch.

Terraform versions

Terraform version 1.0.0 or newer is required for this module to work.

Contributing

Thank you for your interest in contributing! Please refer to CONTRIBUTING.md for guidance.

License

Apache2.0 Licensed. See LICENSE for full details.

Authors

Lean Delivery Team team@lean-delivery.com