title: How can I add a tag to AWS EBS when creating through EC2 with Terraform?
body: <p>I'm trying to create an EC2 instance for a TEST environment, which uses an AMI of PROD. Everything is creating correctly, but I can't add figure out how to add tags to the EBS volumes that are created along with it? </p>
  
  <p>The tags work on the EC2 but don't get applied to the EBS or root volume. I tried adding a tag map on those as well but that was invalid. Any ideas? </p>
  
  <pre><code>provider "aws" {
    region = "us-east-1"
  }
  
  data "aws_ami" "existing_sft_ami" {
    most_recent = true
  
    filter {
      name   = "name"
      values = [var.prod_name]
    }
    owners = [
      var.aws_account_id]
  }
  
  data "aws_subnet" "subnet" {
    id = var.aws_subnet_id
  }
  
  resource "aws_instance" "sftp" {
    ami           = data.aws_ami.existing_sft_ami.id
    instance_type = "t2.micro"
    availability_zone = var.availability_zone
    subnet_id = data.aws_subnet.subnet.id
    key_name = var.ssh_key_name
    vpc_security_group_ids = [var.aws_security_group_id]
    root_block_device {
      delete_on_termination = true
    }
    ebs_block_device {
      device_name = "/dev/sdb"
      delete_on_termination = true
    }
    tags = {
      Name = var.name
      Owner = var.owner
      Created = formatdate("DD MMM YYYY hh:mm ZZZ", timestamp())
      Environment = "TEST"
    }
  }
  </code></pre>