Error creating LB Target Group: ValidationError: Health check matcher HTTP code cannot be empty

[hashibot]

This issue was originally opened by @kwach as hashicorp/terraform#16690. It was migrated here as a result of the provider split. The original body of the issue is below.

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Hi there,

Docuentation states that matcher is an optional field, however without it I get an error:

Error creating LB Target Group: ValidationError: Health check matcher HTTP code cannot be empty

Terraform Version

$ terraform --version
Terraform v0.11.0

• provider.aws v1.3.0
• provider.null v1.0.0
• provider.random v1.0.0
• provider.template v1.0.0

Terraform Configuration Files

resource "aws_alb_target_group" "tg" {
  name     = "tf-tg-${terraform.env}-${element(keys(var.api_service_redirections),count.index)}"
  port     = "${element(values(var.api_service_redirections),count.index)}"
  protocol = "${upper(var.alb_protocol)}"
  vpc_id   = "${module.vpc.vpc_id}"

  health_check {
    interval            = 30
    path                = "/"
    port                = "${var.tg_health_check_port}"
    healthy_threshold   = 3
    unhealthy_threshold = 3
    timeout             = 5
    protocol            = "${upper(var.tg_health_check_protocol)}"
    matcher             = "200,202" #<------
  }
   
  tags = {
    "Terraform" = "true"
    "Environment" = "${terraform.env}"
  } 
  
  count = "${length(keys(var.api_service_redirections))}"
}

Expected Behavior

Optional field should not be required

Actual Behavior

An error:
Error creating LB Target Group: ValidationError: Health check matcher HTTP code cannot be empty

Steps to Reproduce

Please list the full steps required to reproduce the issue, for example:

1. terraform init
2. terraform apply

[zikphil]

I am experiencing the same issue, it started today

[vecchp]

Same here

[catsby]

Hey all – I'm closing this as a duplicate of #2327, please track it there. I'm currently working on this, but I'm afraid I do not have an ETA

[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!