feat: Allow snapshot_id to be specified for additional_ebs_volumes (t…

…erraform-aws-modules#1431)

locals.tf

@@ -78,10 +78,11 @@ locals {
  service_linked_role_arn = "" # Arn of custom service linked role that Auto Scaling group will use. Useful when you have encrypted EBS
  termination_policies = [] # A list of policies to decide how the instances in the auto scale group should be terminated.
  platform = var.default_platform # Platform of workers. Either "linux" or "windows".
- additional_ebs_volumes = [] # A list of additional volumes to be attached to the instances on this Auto Scaling group. Each volume should be an object with the following: block_device_name (required), volume_size, volume_type, iops, throughput, encrypted, kms_key_id (only on launch-template), delete_on_termination. Optional values are grabbed from root volume or from defaults
+ additional_ebs_volumes = [] # A list of additional volumes to be attached to the instances on this Auto Scaling group. Each volume should be an object with the following: block_device_name (required), volume_size, volume_type, iops, throughput, encrypted, kms_key_id (only on launch-template), delete_on_termination, snapshot_id. Optional values are grabbed from root volume or from defaults
  additional_instance_store_volumes = [] # A list of additional instance store (local disk) volumes to be attached to the instances on this Auto Scaling group. Each volume should be an object with the following: block_device_name (required), virtual_name.
  warm_pool = null # If this block is configured, add a Warm Pool to the specified Auto Scaling group.
  timeouts = {} # A map of timeouts for create/update/delete operations
+ snapshot_id = null # A custom snapshot ID.
 
  # Settings for launch templates
  root_block_device_name = concat(data.aws_ami.eks_worker.*.root_device_name, [""])[0] # Root device name for Linux workers. If not provided, will assume default Linux AMI was used.

workers.tf

@@ -344,6 +344,11 @@ resource "aws_launch_configuration" "workers" {
  "encrypted",
  local.workers_group_defaults["root_encrypted"],
  )
+ snapshot_id = lookup(
+ block_device_mappings.value,
+ "snapshot_id",
+ local.workers_group_defaults["snapshot_id"],
+ )
  delete_on_termination = lookup(ebs_block_device.value, "delete_on_termination", true)
  }
  }

workers_launch_template.tf

@@ -524,6 +524,11 @@ resource "aws_launch_template" "workers_launch_template" {
  "kms_key_id",
  local.workers_group_defaults["root_kms_key_id"],
  )
+ snapshot_id = lookup(
+ block_device_mappings.value,
+ "snapshot_id",
+ local.workers_group_defaults["snapshot_id"],
+ )
  delete_on_termination = lookup(block_device_mappings.value, "delete_on_termination", true)
  }
  }