Terraform: Resource not found during plan

[jniesen]

Terraform Version

Terraform v0.11.7

Terraform Configuration Files

...

# ------------------------------------------------------------------------------
# CREATE APPLICATION LOAD BALANCER
# ------------------------------------------------------------------------------
resource "aws_lb" "lb" {
  name               = "${local.env_id}-alb"
  load_balancer_type = "application"
  subnets            = ["${var.subnet_ids}"]
  security_groups    = ["${aws_security_group.application_alb.id}"]

  access_logs {
    bucket = "${var.lb_log_bucket}"
  }

  enable_cross_zone_load_balancing = true
  idle_timeout                     = 400

  tags {
    Name      = "${local.env_id}-alb"
    Terraform = "true"
  }
}

resource "aws_lb_target_group" "http" {
  name                 = "${local.env_id}-alb-http"
  port                 = 80
  protocol             = "HTTP"
  vpc_id               = "${var.vpc_id}"
  deregistration_delay = 400

  health_check {
    healthy_threshold   = 2
    unhealthy_threshold = 2
    timeout             = 3
    interval            = 30
    protocol            = "HTTP"
    port                = "8081"
    path                = "/ping"
    matcher             = 200
  }

}

resource "aws_lb_listener" "http" {
  load_balancer_arn = "${aws_lb.lb.arn}"
  port              = 80
  protocol          = "HTTP"

  default_action {
    target_group_arn = "${aws_lb_target_group.http.arn}"
    type             = "forward"
  }
}

resource "aws_lb_target_group" "https" {
  name                 = "${local.env_id}-alb-https"
  port                 = 443
  protocol             = "HTTPS"
  vpc_id               = "${var.vpc_id}"
  deregistration_delay = 400

  health_check {
    healthy_threshold   = 2
    unhealthy_threshold = 2
    timeout             = 3
    interval            = 30
    protocol            = "HTTP"
    port                = "8081"
    path                = "/ping"
    matcher             = 200
  }
}

resource "aws_lb_listener" "https" {
  load_balancer_arn = "${aws_lb.lb.arn}"
  port              = "443"
  protocol          = "HTTPS"

  default_action {
    target_group_arn = "${aws_lb_target_group.https.arn}"
    type             = "forward"
  }
}

# ------------------------------------------------------------------------------
# CONFIGURE LB STICKINESS
# ------------------------------------------------------------------------------
resource "aws_lb_cookie_stickiness_policy" "http" {
  name          = "http-policy"
  load_balancer = "${aws_lb.lb.id}"
  lb_port       = 80
}

resource "aws_lb_cookie_stickiness_policy" "https" {
  name          = "https-policy"
  load_balancer = "${aws_lb.lb.id}"
  lb_port       = 443
}

Expected Behavior

A plan with no errors about not being able to find a resource that's been defined.

Actual Behavior

I get the following errors:

Error: Error running plan: 16 error(s) occurred:

* module.application.module.application_cluster_east.module.networking.aws_lb_cookie_stickiness_policy.http: 1 error(s) occurred:

* module.application.module.application_cluster_east.module.networking.aws_lb_cookie_stickiness_policy.http: Resource 'aws_lb.lb' not found for variable 'aws_lb.lb.id'
* module.application.module.application_cluster_west.module.networking.aws_lb_listener.http: 1 error(s) occurred:

* module.application.module.application_cluster_west.module.networking.aws_lb_listener.http: Resource 'aws_lb.lb' not found for variable 'aws_lb.lb.arn'
* module.manager.module.networking.output.lb_zone_id: Resource 'aws_lb.lb' not found for variable 'aws_lb.lb.zone_id'
* module.application.module.application_cluster_east.module.networking.output.lb_zone_id: Resource 'aws_lb.lb' not found for variable 'aws_lb.lb.zone_id'
* module.application.module.application_cluster_east.module.networking.aws_lb_listener.https: 1 error(s) occurred:

* module.application.module.application_cluster_east.module.networking.aws_lb_listener.https: Resource 'aws_lb.lb' not found for variable 'aws_lb.lb.arn'
* module.application.module.application_cluster_east.module.networking.aws_lb_listener.http: 1 error(s) occurred:

* module.application.module.application_cluster_east.module.networking.aws_lb_listener.http: Resource 'aws_lb.lb' not found for variable 'aws_lb.lb.arn'
* module.application.module.application_cluster_west.module.networking.output.lb_dns_name: Resource 'aws_lb.lb' not found for variable 'aws_lb.lb.dns_name'
* module.manager.module.networking.aws_lb_listener.https: 1 error(s) occurred:

* module.manager.module.networking.aws_lb_listener.https: Resource 'aws_lb.lb' not found for variable 'aws_lb.lb.arn'
* module.application.module.application_cluster_west.module.networking.aws_lb_listener.https: 1 error(s) occurred:

* module.application.module.application_cluster_west.module.networking.aws_lb_listener.https: Resource 'aws_lb.lb' not found for variable 'aws_lb.lb.arn'
* module.application.module.application_cluster_west.module.networking.aws_lb_cookie_stickiness_policy.https: 1 error(s) occurred:

* module.application.module.application_cluster_west.module.networking.aws_lb_cookie_stickiness_policy.https: Resource 'aws_lb.lb' not found for variable 'aws_lb.lb.id'
* module.application.module.application_cluster_east.module.networking.aws_lb_cookie_stickiness_policy.https: 1 error(s) occurred:

* module.application.module.application_cluster_east.module.networking.aws_lb_cookie_stickiness_policy.https: Resource 'aws_lb.lb' not found for variable 'aws_lb.lb.id'
* module.application.module.application_cluster_east.module.networking.output.lb_dns_name: Resource 'aws_lb.lb' not found for variable 'aws_lb.lb.dns_name'
* module.manager.module.networking.output.lb_dns_name: Resource 'aws_lb.lb' not found for variable 'aws_lb.lb.dns_name'
* module.manager.module.networking.aws_lb_listener.http: 1 error(s) occurred:

* module.manager.module.networking.aws_lb_listener.http: Resource 'aws_lb.lb' not found for variable 'aws_lb.lb.arn'
* module.application.module.application_cluster_west.module.networking.output.lb_zone_id: Resource 'aws_lb.lb' not found for variable 'aws_lb.lb.zone_id'
* module.application.module.application_cluster_west.module.networking.aws_lb_cookie_stickiness_policy.http: 1 error(s) occurred:

* module.application.module.application_cluster_west.module.networking.aws_lb_cookie_stickiness_policy.http: Resource 'aws_lb.lb' not found for variable 'aws_lb.lb.id'

[jniesen]

I'm closing this. It turned out to be an issue with my configuration that was causing the aws_lb to be invalid and not make it into the plan for other things to reference. The invalid error of the resource configuration isn't being exposed in anyway currently.

The issue with with the name property that was referencing local.env_id. That local looks like this:

locals {
  env_id = "${element(split(".", var.fqdn), 0)}"
}

If I hardcode a value for env_id rather than use nested functions to parse a value out of a variable, then everything works fine.

[ifnull]

I'm having a similar issue. There is no indication that the resource is invalid and not being included. In my case I have a aws_ecs_task_definition with an invalid container_definitions but nothing indicates the container_definitions is invalid during terraform plan. It just fails on the first resource that tries to get the ARN of the aws_ecs_task_definition resource.

I'm looking into invalid definitions seperately. I'm only mentioning this as another example of how the issue manifests itself.

[flowirtz]

@ifnull I'm facing the same problem. Also with a faulty container_definition(s).
This issue is still open imo, might be better located in the aws provider repo.

[hashibot[bot]]

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