pbar1 / terraform-aws-lb-linker

Terraform module which assigns static IP addresses to an ALB

AWS LB-Linker Terraform Module

Terraform module adapted from this AWS blog post. In short, gives you the ability to associate a static IP address with an Applicaion Load Balancer (ALB) using a Network Load Balancer (NLB). This module consists of a Lambda that periodically runs and resolves the ALB's private IP addresses and attaches them to the NLB.

Inputs

Name	Description	Type	Default	Required
alb_dns_name	The full DNS name (FQDN) of the ALB.	string	-	yes
alb_listener	The traffic listener port of the ALB.	string	443	no
cw_metric_flag_ip_count	The controller flag that enables the CloudWatch metric of the IP address count.	string	true	no
event_schedule_expression	How often the lambda runs. For example, cron(0 20 * * ? *) or rate(5 minutes).	string	rate(1 minute)	no
invocations_before_deregistration	Then number of required Invocations before an IP address is deregistered.	string	3	no
lambda_timeout	The amount of time your Lambda Function has to run in seconds.	string	300	no
max_lookup_per_invocation	The max times of DNS look per invocation.	string	50	no
name	Base name to use when naming resouces.	string	-	yes
nlb_tg_arn	The ARN of the NLBs target group.	string	-	yes
s3_bucket	Bucket to track changes between Lambda invocations.	string	-	yes
tags	A map of tags that should be applied to AWS infrastructure.	map	-	yes

Outputs

Name	Description
lambda_arn	-