terraform-aws-eipattach

Terraform module to automatically attach an Elastic IP address to an instance on startup.

This module will automatically attach an appropriately tagged Elastic IP address to an appropriately tagged AWS instance when that instance is created (presumably via autoscaling).

License

MIT

Usage examples

Simple

Give the instance tagged EIP foobar the EIP tagged EIP foobar, and disable source/dest checking.

module "eipattach" {
  source              = "claranet/eipattach/aws"
  disable_source_dest = true
}

resource "aws_eip" "test" {
  tags {
    EIP = "foobar"
  }
}

resource "aws_autoscaling_group" "test" {
  name                 = "test"
  max_size             = 1
  min_size             = 1
  launch_configuration = "${aws_launch_configuration.test.name}"
  vpc_zone_identifier  = ["${aws_subnet.test.id}"]

  tag {
    key                 = "EIP"
    value               = "foobar"
    propagate_at_launch = true
  }
}

Machines with multiple ENIs

If you have machines with multiple ENIs, you must tag the ENI appropriately rather than the instance:

resource "aws_eip" "test_eni" {
  tags {
    EIP = "barbaz"
  }
}

resource "aws_network_interface" "test_eni" {
subnet_id = "${aws_subnet.test.id}"

  tags {
    EIP = "barbaz"
  }
}

Contributing

Please submit pull requests at https://github.com/claranet/terraform-aws-eipattach/

The README.md is generated with terraform-docs - to generate run terraform-docs md . > README.md

Inputs

Name	Description	Default	Required
disable_source_dest	Whether to disable source/dest checking when attaching an EIP	false	no
name	Name to use for resources	terraform-aws-eipattach	no
schedule	Schedule for running the Lambda function	rate(1 minute)	no
tag_name	Tag to use to associate EIPs with instances	EIP	no
timeout	Lambda function timeout	60	no