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feat: Add support for tracking latest AMI release version on managed nodegroups (#2951)

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Bryant Biggs
2024-03-08 22:48:38 -05:00
committed by GitHub
parent f1bbfc4740
commit 393da7ec0e
5 changed files with 56 additions and 4 deletions
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41
modules/eks-managed-node-group/main.tf
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@@ -329,6 +329,45 @@ resource "aws_launch_template" "this" {
}
}
################################################################################
# AMI SSM Parameter
################################################################################
locals {
# Just to ensure templating doesn't fail when values are not provided
ssm_cluster_version = var.cluster_version != null ? var.cluster_version : ""
ssm_ami_type = var.ami_type != null ? var.ami_type : ""
# Map the AMI type to the respective SSM param path
ssm_ami_type_to_ssm_param = {
AL2_x86_64 = "/aws/service/eks/optimized-ami/${local.ssm_cluster_version}/amazon-linux-2/recommended/release_version"
AL2_x86_64_GPU = "/aws/service/eks/optimized-ami/${local.ssm_cluster_version}/amazon-linux-2-gpu/recommended/release_version"
AL2_ARM_64 = "/aws/service/eks/optimized-ami/${local.ssm_cluster_version}/amazon-linux-2-arm64/recommended/release_version"
CUSTOM = "NONE"
BOTTLEROCKET_ARM_64 = "/aws/service/bottlerocket/aws-k8s-${local.ssm_cluster_version}/arm64/latest/image_version"
BOTTLEROCKET_x86_64 = "/aws/service/bottlerocket/aws-k8s-${local.ssm_cluster_version}/x86_64/latest/image_version"
BOTTLEROCKET_ARM_64_NVIDIA = "/aws/service/bottlerocket/aws-k8s-${local.ssm_cluster_version}-nvidia/arm64/latest/image_version"
BOTTLEROCKET_x86_64_NVIDIA = "/aws/service/bottlerocket/aws-k8s-${local.ssm_cluster_version}-nvidia/x86_64/latest/image_version"
WINDOWS_CORE_2019_x86_64 = "/aws/service/ami-windows-latest/Windows_Server-2019-English-Full-EKS_Optimized-${local.ssm_cluster_version}"
WINDOWS_FULL_2019_x86_64 = "/aws/service/ami-windows-latest/Windows_Server-2019-English-Core-EKS_Optimized-${local.ssm_cluster_version}"
WINDOWS_CORE_2022_x86_64 = "/aws/service/ami-windows-latest/Windows_Server-2022-English-Full-EKS_Optimized-${local.ssm_cluster_version}"
WINDOWS_FULL_2022_x86_64 = "/aws/service/ami-windows-latest/Windows_Server-2022-English-Core-EKS_Optimized-${local.ssm_cluster_version}"
AL2023_x86_64_STANDARD = "/aws/service/eks/optimized-ami/${local.ssm_cluster_version}/amazon-linux-2023/x86_64/standard/recommended/release_version"
AL2023_ARM_64_STANDARD = "/aws/service/eks/optimized-ami/${local.ssm_cluster_version}/amazon-linux-2023/arm64/standard/recommended/release_version"
}
# The Windows SSM params currently do not have a release version, so we have to get the full output JSON blob and parse out the release version
windows_latest_ami_release_version = var.create && var.use_latest_ami_release_version && startswith(local.ssm_ami_type, "WINDOWS") ? nonsensitive(jsondecode(data.aws_ssm_parameter.ami[0].value)["release_version"]) : null
# Based on the steps above, try to get an AMI release version - if not, `null` is returned
latest_ami_release_version = startswith(local.ssm_ami_type, "WINDOWS") ? local.windows_latest_ami_release_version : try(nonsensitive(data.aws_ssm_parameter.ami[0].value), null)
}
data "aws_ssm_parameter" "ami" {
count = var.create && var.use_latest_ami_release_version ? 1 : 0
name = local.ssm_ami_type_to_ssm_param[var.ami_type]
}
################################################################################
# Node Group
################################################################################
@@ -359,7 +398,7 @@ resource "aws_eks_node_group" "this" {
# https://docs.aws.amazon.com/eks/latest/userguide/launch-templates.html#launch-template-custom-ami
ami_type = var.ami_id != "" ? null : var.ami_type
release_version = var.ami_id != "" ? null : var.ami_release_version
release_version = var.ami_id != "" ? null : var.use_latest_ami_release_version ? local.latest_ami_release_version : var.ami_release_version
version = var.ami_id != "" ? null : var.cluster_version
capacity_type = var.capacity_type