EOF in aws_lb_listener when ALB is configured with the new "fixed response" option (via AWS console)

[tam116]

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Terraform Version

0.11.7
aws = 1.29,1.27,1.28, and 1.22

Affected Resource(s)

aws_lb_listener_rule

Terraform Configuration Files

resource "aws_lb_listener_rule" "LoadBalancerListener" {
  listener_arn = "${var.ListenerArn}"

  action {
    type             = "forward"
    target_group_arn = "${var.TargetGroupArn}"
  }

  condition {
    field  = "host-header"
    values = "${var.values}"
  }

  lifecycle {
    create_before_destroy = true
  }
}

Debug Output

https://gist.github.com/tam116/31d807604ca39d28f8651a96bec82d82

Panic Output

https://gist.github.com/tam116/31d807604ca39d28f8651a96bec82d82

Expected Behavior

Terraform should apply the config. It should ignore the "fixed response" listener rule configured on the ALB when that rule is not managed by terraform. If the rule is managed it should handle setting the rule back to a "forward" (or any other supported listener rule type)

Actual Behavior

Terraform plan fails with EOF errors.

Steps to Reproduce

Manually configure the default ALB rule to be a "fixed response" listener rule via web console of aws cli.
Use terraform to manage a different "forward" rule on the same ALB.

Important Factoids

I did not test against other rule types like Authenticate or Redirect nor setting a non-default rule to fixed response,

References

Details about the new ALB listener rule options: https://aws.amazon.com/about-aws/whats-new/2018/07/elastic-load-balancing-announces-support-for-redirects-and-fixed-responses-for-application-load-balancer/

[junkangli]

I am facing the same problem when manually configuring the default action to "Redirect".

[bflad]

I'm working on a fix for this, I should be able to submit the pull request shortly.

[bflad]

Crash fix pull request submitted: #5367

[bflad]

The fix for this crash has been merged into master and will release with version 1.30.0 of the AWS provider, likely middle of next week.

[bflad]

This has been released in version 1.30.0 of the AWS provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

[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!