resource "aws_ebs_volume" "app_volume" {
  availability_zone = var.availability_zone
  size = 20
  type = "standard"
  tags = {
    Name = "APP Video block storage"
  }
}

resource "aws_volume_attachment" "ebs_att" {
  device_name = "/dev/sdf"
  volume_id = aws_ebs_volume.app_volume.id
  instance_id = aws_instance.app_instance.id
}