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Support for EKS Managed Node Groups (#602)

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* Finished first cut of managed node groups

* Updated formatting and extra fields.

* Updating Changelog and README

* Fixing formatting

* Fixing docs.

* Updating required Version

* Updating changelog

* Adding example for managed node groups

* Managed IAM Roles for Nodegroups now have correct policies. Tags can now be added to node groups.

* Fixing bug where people could set source_security_group_ids without setting ssh key causing a race condition within the aws provider.

* Adding lifecycle create_before_destroy

* Adding random pet names for create_before_destroy

* Updating per comments.

* Updating required versions of terraform

* Updating per comments.

* Updating vars

* Updating minimum version for terraform

* Change worker_groups_managed_node_groups to node_groups

* Using for_each on the random_pet

* Adding changes recommended by @eytanhanig

* Update node_groups.tf
This commit is contained in:
William Morgan
2019-12-04 12:30:36 -05:00
committed by Max Williams
parent 614d815c3c
commit cf3dcc5c58
10 changed files with 311 additions and 5 deletions
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17
local.tf
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@@ -16,8 +16,9 @@ locals {
default_iam_role_id = concat(aws_iam_role.workers.*.id, [""])[0]
kubeconfig_name = var.kubeconfig_name == "" ? "eks_${var.cluster_name}" : var.kubeconfig_name
worker_group_count = length(var.worker_groups)
worker_group_launch_template_count = length(var.worker_groups_launch_template)
worker_group_count = length(var.worker_groups)
worker_group_launch_template_count = length(var.worker_groups_launch_template)
worker_group_managed_node_group_count = length(var.node_groups)
default_ami_id_linux = data.aws_ami.eks_worker.id
default_ami_id_windows = data.aws_ami.eks_worker_windows.id
@@ -79,6 +80,15 @@ locals {
spot_allocation_strategy = "lowest-price" # Valid options are 'lowest-price' and 'capacity-optimized'. If 'lowest-price', the Auto Scaling group launches instances using the Spot pools with the lowest price, and evenly allocates your instances across the number of Spot pools. If 'capacity-optimized', the Auto Scaling group launches instances using Spot pools that are optimally chosen based on the available Spot capacity.
spot_instance_pools = 10 # "Number of Spot pools per availability zone to allocate capacity. EC2 Auto Scaling selects the cheapest Spot pools and evenly allocates Spot capacity across the number of Spot pools that you specify."
spot_max_price = "" # Maximum price per unit hour that the user is willing to pay for the Spot instances. Default is the on-demand price
ami_type = "AL2_x86_64" # AMI Type to use for the Managed Node Groups. Can be either: AL2_x86_64 or AL2_x86_64_GPU
ami_release_version = "" # AMI Release Version of the Managed Node Groups
source_security_group_id = [] # Source Security Group IDs to allow SSH Access to the Nodes. NOTE: IF LEFT BLANK, AND A KEY IS SPECIFIED, THE SSH PORT WILL BE OPENNED TO THE WORLD
node_group_k8s_labels = {} # Kubernetes Labels to apply to the nodes within the Managed Node Group
node_group_desired_capacity = 1 # Desired capacity of the Node Group
node_group_min_capacity = 1 # Min capacity of the Node Group (Minimum value allowed is 1)
node_group_max_capacity = 3 # Max capacity of the Node Group
node_group_iam_role_arn = "" # IAM role to use for Managed Node Groups instead of default one created by the automation
node_group_additional_tags = {} # Additional tags to be applied to the Node Groups
}
workers_group_defaults = merge(
@@ -123,4 +133,7 @@ locals {
"t2.small",
"t2.xlarge"
]
node_groups = { for node_group in var.node_groups : node_group["name"] => node_group }
}