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CLD-8753: Add cluster-autoscaler #803

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Jan 21, 2025
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CLD-8753: Add cluster-autoscaler #803

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1 change: 1 addition & 0 deletions aws/eks-customer/README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,7 @@
| [aws_eks_addon.kube_proxy](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/eks_addon) | resource |
| [aws_eks_addon.snapshot-controller](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/eks_addon) | resource |
| [aws_iam_policy.bifrost](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_policy) | resource |
| [aws_iam_policy.cluster-autoscaler](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_policy) | resource |
| [aws_iam_policy.external-secrets](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_policy) | resource |
| [aws_iam_policy.node](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_policy) | resource |
| [aws_iam_policy.velero](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_policy) | resource |
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2 changes: 1 addition & 1 deletion aws/eks-customer/irsa.tf
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@@ -1,6 +1,6 @@
locals {
policies_by_name = {
for policy in concat(values(aws_iam_policy.bifrost), values(aws_iam_policy.velero), values(aws_iam_policy.external-secrets)) :
for policy in concat(values(aws_iam_policy.bifrost), values(aws_iam_policy.velero), values(aws_iam_policy.external-secrets), values(aws_iam_policy.cluster-autoscaler)) :
policy.name => policy
}
}
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30 changes: 30 additions & 0 deletions aws/eks-customer/utility_policies.tf
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Expand Up @@ -112,3 +112,33 @@ resource "aws_iam_policy" "external-secrets" {
}
EOF
}

resource "aws_iam_policy" "cluster-autoscaler" {
for_each = { for k, v in var.utilities : k => v if v.name == "cluster-autoscaler" }

name = "cluster-autoscaler-${module.eks.cluster_name}"
path = "/"
description = "Policy for cluster-autoscaler utility."

policy = <<EOF
{
"Statement": [
{
"Action": [
"autoscaling:DescribeAutoScalingGroups",
"autoscaling:DescribeAutoScalingInstances",
"autoscaling:DescribeLaunchConfigurations",
"autoscaling:DescribeTags",
"autoscaling:SetDesiredCapacity",
"autoscaling:TerminateInstanceInAutoScalingGroup",
"ec2:DescribeLaunchTemplateVersions",
"eks:DescribeNodegroup"
],
"Effect": "Allow",
"Resource": "*"
}
],
"Version": "2012-10-17"
}
EOF
}