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be29f52039
* Add an `enable_aggregation` variable to enable the kube-apiserver aggregation layer for adding extension apiservers to clusters * Aggregation is **disabled** by default. Typhoon recommends you not enable aggregation. Consider whether less invasive ways to achieve your goals are possible and whether those goals are well-founded * Enabling aggregation and extension apiservers increases the attack surface of a cluster and makes extensions a part of the control plane. Admins must scrutinize and trust any extension apiserver used. * Passing a v1.14 CNCF conformance test requires aggregation be enabled. Having an option for aggregation keeps compliance, but retains the stricter security posture on default clusters
155 lines
3.9 KiB
HCL
155 lines
3.9 KiB
HCL
variable "cluster_name" {
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type = "string"
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description = "Unique cluster name (prepended to dns_zone)"
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}
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# AWS
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variable "dns_zone" {
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type = "string"
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description = "AWS Route53 DNS Zone (e.g. aws.example.com)"
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}
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variable "dns_zone_id" {
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type = "string"
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description = "AWS Route53 DNS Zone ID (e.g. Z3PAABBCFAKEC0)"
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}
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# instances
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variable "controller_count" {
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type = "string"
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default = "1"
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description = "Number of controllers (i.e. masters)"
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}
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variable "worker_count" {
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type = "string"
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default = "1"
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description = "Number of workers"
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}
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variable "controller_type" {
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type = "string"
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default = "t3.small"
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description = "EC2 instance type for controllers"
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}
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variable "worker_type" {
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type = "string"
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default = "t3.small"
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description = "EC2 instance type for workers"
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}
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variable "os_image" {
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type = "string"
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default = "coreos-stable"
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description = "AMI channel for a Container Linux derivative (coreos-stable, coreos-beta, coreos-alpha, flatcar-stable, flatcar-beta, flatcar-alpha)"
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}
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variable "disk_size" {
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type = "string"
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default = "40"
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description = "Size of the EBS volume in GB"
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}
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variable "disk_type" {
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type = "string"
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default = "gp2"
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description = "Type of the EBS volume (e.g. standard, gp2, io1)"
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}
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variable "disk_iops" {
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type = "string"
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default = "0"
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description = "IOPS of the EBS volume (e.g. 100)"
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}
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variable "worker_price" {
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type = "string"
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default = ""
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description = "Spot price in USD for autoscaling group spot instances. Leave as default empty string for autoscaling group to use on-demand instances. Note, switching in-place from spot to on-demand is not possible: https://github.com/terraform-providers/terraform-provider-aws/issues/4320"
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}
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variable "worker_target_groups" {
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type = "list"
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description = "Additional target group ARNs to which worker instances should be added"
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default = []
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}
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variable "controller_clc_snippets" {
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type = "list"
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description = "Controller Container Linux Config snippets"
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default = []
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}
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variable "worker_clc_snippets" {
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type = "list"
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description = "Worker Container Linux Config snippets"
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default = []
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}
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# configuration
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variable "ssh_authorized_key" {
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type = "string"
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description = "SSH public key for user 'core'"
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}
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variable "asset_dir" {
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description = "Path to a directory where generated assets should be placed (contains secrets)"
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type = "string"
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}
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variable "networking" {
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description = "Choice of networking provider (calico or flannel)"
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type = "string"
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default = "calico"
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}
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variable "network_mtu" {
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description = "CNI interface MTU (applies to calico only). Use 8981 if using instances types with Jumbo frames."
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type = "string"
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default = "1480"
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}
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variable "host_cidr" {
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description = "CIDR IPv4 range to assign to EC2 nodes"
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type = "string"
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default = "10.0.0.0/16"
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}
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variable "pod_cidr" {
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description = "CIDR IPv4 range to assign Kubernetes pods"
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type = "string"
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default = "10.2.0.0/16"
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}
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variable "service_cidr" {
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description = <<EOD
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CIDR IPv4 range to assign Kubernetes services.
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The 1st IP will be reserved for kube_apiserver, the 10th IP will be reserved for coredns.
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EOD
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type = "string"
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default = "10.3.0.0/16"
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}
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variable "cluster_domain_suffix" {
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description = "Queries for domains with the suffix will be answered by coredns. Default is cluster.local (e.g. foo.default.svc.cluster.local) "
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type = "string"
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default = "cluster.local"
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}
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variable "enable_reporting" {
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type = "string"
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description = "Enable usage or analytics reporting to upstreams (Calico)"
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default = "false"
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}
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variable "enable_aggregation" {
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description = "Enable the Kubernetes Aggregation Layer (defaults to false)"
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type = "string"
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default = "false"
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}
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