cloud-platform-terraform-cluster-autoscaler

This is the cluster-autoscaler terraform module

Usage

module "cluster_autoscaler" {
  source = "github.com/ministryofjustice/cloud-platform-terraform-cluster-autoscaler?ref=1.0.3"

  enable_overprovision        = lookup(local.prod_workspace, terraform.workspace, false)
  cluster_domain_name         = data.terraform_remote_state.cluster.outputs.cluster_domain_name
  eks_cluster_id              = data.terraform_remote_state.cluster.outputs.cluster_id
  eks_cluster_oidc_issuer_url = data.terraform_remote_state.cluster.outputs.cluster_oidc_issuer_url
}

Requirements

Name	Version
terraform	>= 1.2.5
aws	>=3.0.0
helm	>=2.6.0
kubernetes	>=2.12.1

Providers

Name	Version
aws	>=3.0.0
helm	>=2.6.0
kubernetes	>=2.12.1

Modules

Name	Source	Version
iam_assumable_role_admin	terraform-aws-modules/iam/aws//modules/iam-assumable-role-with-oidc	3.13.0

Resources

Name	Type
aws_iam_policy.cluster_autoscaler	resource
helm_release.cluster-overprovisioner	resource
helm_release.cluster-proportional-autoscaler-cpu	resource
helm_release.cluster-proportional-autoscaler-memory	resource
helm_release.cluster_autoscaler	resource
kubernetes_namespace.overprovision	resource
aws_iam_policy_document.cluster_autoscaler	data source

Inputs

Name	Description	Type	Default	Required
cluster_domain_name	The cluster domain used for externalDNS annotations and certmanager	any	n/a	yes
eks_cluster_id	The EKS cluster ID used by the autoscaler	any	n/a	yes
eks_cluster_oidc_issuer_url	If EKS variable is set to true this is going to be used when we create the IAM OIDC role	string	""	no
enable_overprovision	Enable or disbale creation of overprovisioner	bool	true	no
live_cpu_request	Overprovisioner cpu request for live pods	string	"200m"	no
live_memory_request	Overprovisioner memory request for live pods	string	"1800Mi"	no

Outputs

No outputs.

Reading Material

• https://github.com/kubernetes/autoscaler/tree/master/cluster-autoscaler