Support manually providing a private IPv4 address for an internal network load balancer

[arnogeurts]

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Description

AWS supports manually providing a private IPv4 address to the NLB[1], however, this is not yet supported in this Terraform provider. It would be nice if the field "private_ipv4_address" would be added to the "subnet_mapping" block in the "aws_lb" resource.

New or Affected Resource(s)

• aws_lb

Potential Terraform Configuration

resource "aws_lb" "lb_test" {
  name               = "my-network-load-balancer"
  load_balancer_type = "network"
  internal           = true

  subnet_mapping {
    subnet_id            = aws_subnet.private.id
    private_ipv4_address = "10.0.0.11"
  }
}

References

[1] https://docs.aws.amazon.com/elasticloadbalancing/latest/network/network-load-balancers.html

• #0000

[ewbankkit]

Similar:

• Private IP address selection for internal NLBs #11044
• Ability to manually assign a private static IP address from each subnet to an AWS NLB #11887
• add support for private ipv4 address in subnet mappings of resource aws_lb #11403
• resource "aws_lb" subnet mapping private ip #11674

[bflad]

Hi folks 👋 This functionality has been merged and will release with version 3.1.0 of the Terraform AWS Provider, next Thursday. Thanks to @kadenlnelson for the implementation. 👍

[ghost]

This has been released in version 3.1.0 of the Terraform AWS provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

For further feature requests or bug reports with this functionality, please create a new GitHub issue following the template for triage. Thanks!

[ghost]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.

If you feel this issue should be reopened, we encourage creating a new issue linking back to this one for added context. Thanks!