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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
130 lines
3.1 KiB
HCL
130 lines
3.1 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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# Google Cloud
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variable "region" {
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type = "string"
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description = "Google Cloud Region (e.g. us-central1, see `gcloud compute regions list`)"
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}
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variable "dns_zone" {
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type = "string"
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description = "Google Cloud DNS Zone (e.g. google-cloud.example.com)"
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}
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variable "dns_zone_name" {
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type = "string"
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description = "Google Cloud DNS Zone name (e.g. example-zone)"
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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 = "n1-standard-1"
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description = "Machine type for controllers (see `gcloud compute machine-types list`)"
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}
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variable "worker_type" {
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type = "string"
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default = "n1-standard-1"
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description = "Machine type for controllers (see `gcloud compute machine-types list`)"
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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 = "Container Linux image for compute instances (e.g. coreos-stable)"
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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 disk in GB"
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}
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variable "worker_preemptible" {
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type = "string"
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default = "false"
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description = "If enabled, Compute Engine will terminate workers randomly within 24 hours"
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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 (flannel or calico)"
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type = "string"
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default = "calico"
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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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