[Enhancement]: aws_lb support enforce_security_group_inbound_rules_on_private_link_traffic

[evan-cleary]

Description

When AWS introduced Security Group support for network load balancers, they added an additional property to configure whether the inbound rules are enforced for PrivateLink traffic.

This property is currently not exposed via the aws_lb/aws_alb resources, so all network load balancers default to the behavior in which inbound rules ARE enforced.

Affected Resource(s) and/or Data Source(s)

• aws_alb
• aws_lb

Potential Terraform Configuration

resource "aws_lb" "nlb_with_sg" {
  name               = "nlb-with-sg"
  load_balancer_type = "network"
  subnets            = [...]
  security_groups    = [aws_security_group.nlb_sg.id]

  enforce_security_group_inbound_rules_on_private_link_traffic = "off"
}

References

• SetSecurityGroups API Docs
• LB Security Group Docs

Would you like to implement a fix?

Yes

[github-actions]

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[cbllopez]

Is there any consideration to support this feature? We are hitting the same issue with NLBs and Private Links from API gateway.

[github-actions]

This functionality has been released in v5.30.0 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. Thank you!

[github-actions]

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 have found a problem that seems similar to this, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further.