Terraform - A managed resource has not been declared in the root module

user_11176446 0
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i'm trying create ec2 instance and setup load balancer using terraform but i'm facing follwing error. How to create instance and configure load balacer in a single main.tf file?

Error: Reference to undeclared resource

"aws_lb_target_group" "front-end":27: vpc_id = "${aws_vpc.terrafom-elb.id}" A managed resource "aws_vpc" "terrafom-elb" has not been declared in the root module.source`

code:

  region = "us-east-1"
  access_key = "*********************"
  secret_key = "**********************"
}

resource "aws_instance" "terraform" {
  ami           = "ami-07ebfd5b3428b6f4d"
  instance_type = "t2.micro"
  security_groups    = ["nodejs","default"]
  tags = {
    Name = "terrafom-elb"
  }
}

resource "aws_lb" "front-end"{
  name = "front-end-lb"
  internal = false
  security_groups    = ["nodejs"]

}

resource "aws_lb_target_group" "front-end" {
  name     = "front-end"
  port     = 8989
  protocol = "HTTP"
  vpc_id   = "${aws_vpc.terrafom-elb.id}"
  depends_on = [aws_instance.terraform]
}
terraform-provider-aws terraform
2 Answers

You can add a data structure to the top and pass VPC ID as variable:

data "aws_vpc" "selected" {
  id = var.vpc_id
}

And reference it as vpc_id = data.aws_vpc.selected.id

user_88508560

There's a typo where you're assigning the vpc_id:

vpc_id   = "${aws_vpc.terrafom-elb.id}"

should be:

vpc_id   = "${aws_vpc.terraform-elb.id}"

note the missing 'r' in the word 'terraform'

user_27523400
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