• Cloud
• Terraform
• Disks

Cloud/Terraform/Disks

Module

• Vars for disks

  variable "disk_root" {
    description = "The root device map."
    type        = list(map(string))
    default     = []
  }
  
  variable "disks_additional" {
    description = "Additional block devices to attach to the vm"
    type        = list(map(string))
    default     = []
  }

• main.tf - AWS

  /*****
  * Additional EBS volume - xvdf / sdf
  *****/
  resource "aws_ebs_volume" "extra" {
    for_each          = { for ebs in var.ebs_block_devices : ebs.device_name => ebs }
    availability_zone = aws_instance.this.availability_zone
    #size              = each.value.size
    size        = lookup(each.value, "size", lookup(each.value, "volume_size", ""))
    encrypted   = lookup(each.value, "encrypted", true)
    iops        = lookup(each.value, "iops", null) # Only for type io1, io2, gp3
    snapshot_id = lookup(each.value, "snapshot_id", null)
    type        = lookup(each.value, "type", lookup(each.value, "volume_type", "gp3"))
    tags = merge(
      module.common_tags.tags,
      var.custom_volume_tags,
      var.tags_volume,
      {
        "Name" = join("_", [var.hostname, each.value.device_name])
      },
    )
  }
  
  resource "aws_volume_attachment" "ebs_att" {
    for_each    = { for ebs in var.ebs_block_devices : ebs.device_name => ebs }
    device_name = each.value.device_name
    volume_id   = aws_ebs_volume.extra[each.value.device_name].id
    instance_id = aws_instance.this.id
  }

Use Module

• e.g.

    root_block_device        = [{
        volume_size  = 65  # >65GiB minimum for MS-SQL instance type.
        volume_type  = "gp3"
        encrypted    = true
      }]
    # https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/device_naming.html
    # start at /dev/xvdf for extra ebs
    # Changes in ebs_block_device argument will be ignored. Use aws_volume_attachment resource to attach and detach volumes from AWS EC2 instances.
    ### ebs_block_device = [ ]
    ebs_block_devices = [
        {   # D: Data
            "device_name": "/dev/sdf",
            "volume_size": 60,
            "volume_type": "gp3",
            "encrypted": "true",
        },
        {   # E: SQLLogs
            "device_name": "/dev/sdg",
            "volume_size": 100,
            "volume_type": "gp3",
            "encrypted": "true",
        },
        {   # F SQLDump
            "device_name": "/dev/sdh",
            "volume_size": 50,
            "volume_type": "gp3",
            "encrypted": "true",
        },
        {   # G SQL
            "device_name": "/dev/sdi",
            "volume_size": 50,
            "volume_type": "gp3",
            "encrypted": "true",
        },
        {   # T: Temp
            "device_name": "/dev/sdj",
            "volume_size": 10,
            "volume_type": "gp3",
            "encrypted": "true",
        },
    ]