Error while creating instance on AWS with Terraform

Question

I am trying to create a instance on AWS with Terraform with existing resources

Below is my varibale.tf file

variable "aws_vpc" {
  description = "VPC ID"
  default = "vpc-1234567b"
}

variable "subnet_prv1" {
  description = "Subnet ID"
  default = "subnet-1234567"
}

Below is my ec2.tf file

provider "aws" {
  access_key = "SDSFFDGRTYUYIJKH"
  secret_key = "sfdfKSFE3546/34sfsfSFDFSF89dv"
  region     = "ap-south-1"
}

resource "aws_instance" "terra-jd" {
  ami           = "ami-1234567"
  instance_type = "t2.micro"
  vpc_id        = "${var.aws_vpc}"
  subnet_id     = "${var.subnet_prv1}"
  key_name      = "AWS-IntIGRATION-APAC"
  security_groups = "MYORG-INT-Ser-Cluster-SG"
  tags {
  Name = "terra-jd-nirvana"
  }
}

When I try to run terraform apply it gives me error

Error: aws_instance.terra-jd: : invalid or unknown key: vpc_id

VPC, SUBNET, Security groups , key name they all are already existing, when try to spin instance with existing resources it gives error , how to correct it?

ydaetskcoR · Accepted Answer · 2019-01-21 08:19:35Z

1

The aws_instance resource doesn't take a vpc_id parameter at all so the error is pretty self explanatory.

Setting the subnet_id infers the VPC ID because a subnet can only live in a single VPC.

answered Jan 21, 2019 at 8:19

ydaetskcoR

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1 Comment

Jaydeep Chaudhari Over a year ago

Yes, I checked that, you dont need to give vpc_id instead you give subnet_id and vpc will pick automatically..

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