Add stricter types for AWS modules and update docs
* Review variables available in AWS kubernetes and workers modules and documentation * Switching between spot and on-demand has worked since Terraform v0.12 * Generally, there are too many knobs. Less useful ones should be de-emphasized or removed * Remove `cluster_domain_suffix` documentation
This commit is contained in:
Dalton Hubble
parent
f453c54956
commit
a407ff72df
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@ -8,6 +8,7 @@ Notable changes between versions.
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#### AWS
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* Add Terraform v0.12 variables types ([#553](https://github.com/poseidon/typhoon/pull/553))
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* Add `node_labels` variable to internal `workers` module ([#550](https://github.com/poseidon/typhoon/pull/550))
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#### Azure
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@ -18,57 +18,57 @@ variable "dns_zone_id" {
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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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type = number
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description = "Number of controllers (i.e. masters)"
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default = 1
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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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type = number
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description = "Number of workers"
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default = 1
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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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default = "t3.small"
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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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default = "t3.small"
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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, flatcar-edge)"
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default = "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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type = number
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description = "Size of the EBS volume in GB"
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default = 40
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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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default = "gp2"
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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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type = number
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description = "IOPS of the EBS volume (e.g. 100)"
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default = 0
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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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type = number
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description = "Spot price in USD for worker instances or 0 to use on-demand instances"
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default = 0
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}
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variable "worker_target_groups" {
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@ -97,61 +97,53 @@ variable "ssh_authorized_key" {
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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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description = "Absolute path to a directory where generated assets should be placed (contains secrets)"
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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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description = "Choice of networking provider (calico or flannel)"
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default = "calico"
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}
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variable "network_mtu" {
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type = number
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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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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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description = "CIDR IPv4 range to assign to EC2 nodes"
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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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description = "CIDR IPv4 range to assign Kubernetes pods"
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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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type = string
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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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type = bool
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description = "Enable usage or analytics reporting to upstreams (Calico)"
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default = "false"
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default = false
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}
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variable "enable_aggregation" {
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type = bool
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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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default = false
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}
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variable "worker_node_labels" {
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@ -160,3 +152,11 @@ variable "worker_node_labels" {
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default = []
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}
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# unofficial, undocumented, unsupported
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variable "cluster_domain_suffix" {
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type = string
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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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default = "cluster.local"
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}
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@ -23,45 +23,45 @@ variable "security_groups" {
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# instances
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variable "worker_count" {
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type = string
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default = "1"
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type = number
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description = "Number of instances"
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default = 1
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}
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variable "instance_type" {
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type = string
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default = "t3.small"
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description = "EC2 instance type"
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default = "t3.small"
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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, flatcar-edge)"
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default = "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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type = number
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description = "Size of the EBS volume in GB"
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default = 40
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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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default = "gp2"
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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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type = number
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description = "IOPS of the EBS volume (required for io1)"
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default = 0
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}
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variable "spot_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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type = number
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description = "Spot price in USD for worker instances or 0 to use on-demand instances"
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default = 0
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}
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variable "target_groups" {
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@ -89,19 +89,17 @@ variable "ssh_authorized_key" {
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}
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variable "service_cidr" {
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type = string
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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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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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default = "cluster.local"
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}
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@ -46,7 +46,7 @@ resource "aws_autoscaling_group" "workers" {
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resource "aws_launch_configuration" "worker" {
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image_id = local.ami_id
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instance_type = var.instance_type
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spot_price = var.spot_price
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spot_price = var.spot_price > 0 ? var.spot_price : null
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enable_monitoring = false
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user_data = data.ct_config.worker-ignition.rendered
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@ -18,57 +18,57 @@ variable "dns_zone_id" {
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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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type = number
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description = "Number of controllers (i.e. masters)"
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default = 1
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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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type = number
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description = "Number of workers"
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default = 1
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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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default = "t3.small"
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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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default = "t3.small"
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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 Fedora CoreOS (not yet used)"
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default = "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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type = number
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description = "Size of the EBS volume in GB"
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default = 40
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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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default = "gp2"
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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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type = number
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description = "IOPS of the EBS volume (e.g. 100)"
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default = 0
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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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type = number
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description = "Spot price in USD for worker instances or 0 to use on-demand instances"
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default = 0
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}
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variable "worker_target_groups" {
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@ -97,61 +97,59 @@ variable "ssh_authorized_key" {
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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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description = "Absolute path to a directory where generated assets should be placed (contains secrets)"
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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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description = "Choice of networking provider (calico or flannel)"
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default = "calico"
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}
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variable "network_mtu" {
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type = number
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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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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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description = "CIDR IPv4 range to assign to EC2 nodes"
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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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description = "CIDR IPv4 range to assign Kubernetes pods"
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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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type = string
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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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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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default = "cluster.local"
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}
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variable "enable_reporting" {
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type = string
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type = bool
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description = "Enable usage or analytics reporting to upstreams (Calico)"
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default = "false"
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default = false
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}
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variable "enable_aggregation" {
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type = bool
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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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default = false
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}
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variable "worker_node_labels" {
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@ -159,3 +157,12 @@ variable "worker_node_labels" {
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description = "List of initial worker node labels"
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default = []
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}
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# unofficial, undocumented, unsupported
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variable "cluster_domain_suffix" {
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type = string
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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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default = "cluster.local"
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}
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|
|
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|
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@ -23,45 +23,45 @@ variable "security_groups" {
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# instances
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variable "worker_count" {
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type = string
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default = "1"
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type = number
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description = "Number of instances"
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default = 1
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}
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variable "instance_type" {
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type = string
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default = "t3.small"
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description = "EC2 instance type"
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default = "t3.small"
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}
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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 Fedora CoreOS (not yet used)"
|
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default = "coreos-stable"
|
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}
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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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type = number
|
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description = "Size of the EBS volume in GB"
|
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default = 40
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}
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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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default = "gp2"
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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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type = number
|
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description = "IOPS of the EBS volume (required for io1)"
|
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default = 0
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}
|
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|
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variable "spot_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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type = number
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description = "Spot price in USD for worker instances or 0 to use on-demand instances"
|
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default = 0
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}
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|
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variable "target_groups" {
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|
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@ -89,19 +89,17 @@ variable "ssh_authorized_key" {
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}
|
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|
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variable "service_cidr" {
|
||||
type = string
|
||||
description = <<EOD
|
||||
CIDR IPv4 range to assign Kubernetes services.
|
||||
The 1st IP will be reserved for kube_apiserver, the 10th IP will be reserved for coredns.
|
||||
EOD
|
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|
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|
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type = string
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default = "10.3.0.0/16"
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}
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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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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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default = "cluster.local"
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}
|
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|
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|
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|
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@ -46,7 +46,7 @@ resource "aws_autoscaling_group" "workers" {
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resource "aws_launch_configuration" "worker" {
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image_id = data.aws_ami.fedora-coreos.image_id
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instance_type = var.instance_type
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spot_price = var.spot_price
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spot_price = var.spot_price > 0 ? var.spot_price : null
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||||
enable_monitoring = false
|
||||
|
||||
user_data = data.ct_config.worker-ignition.rendered
|
||||
|
|
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|||
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|
@ -63,8 +63,10 @@ The AWS internal `workers` module supports a number of [variables](https://githu
|
|||
| worker_count | Number of instances | 1 | 3 |
|
||||
| instance_type | EC2 instance type | "t3.small" | "t3.medium" |
|
||||
| os_image | AMI channel for a Container Linux derivative | coreos-stable | coreos-stable, coreos-beta, coreos-alpha, flatcar-stable, flatcar-beta, flatcar-alpha |
|
||||
| disk_size | Size of the disk in GB | 40 | 100 |
|
||||
| spot_price | Spot price in USD for workers. Leave as default empty string for regular on-demand instances | "" | "0.10" |
|
||||
| disk_size | Size of the EBS volume in GB | 40 | 100 |
|
||||
| disk_type | Type of the EBS volume | "gp2" | standard, gp2, io1 |
|
||||
| disk_iops | IOPS of the EBS volume | 0 (i.e. auto) | 400 |
|
||||
| spot_price | Spot price in USD for worker instances or 0 to use on-demand instances | 0 | 0.10 |
|
||||
| clc_snippets | Container Linux Config snippets | [] | [example](/advanced/customization/#usage) |
|
||||
| service_cidr | Must match `service_cidr` of cluster | "10.3.0.0/16" | "10.3.0.0/24" |
|
||||
| cluster_domain_suffix | Must match `cluster_domain_suffix` of cluster | "cluster.local" | "k8s.example.com" |
|
||||
|
|
|
|||
|
|
@ -177,7 +177,7 @@ Check the [variables.tf](https://github.com/poseidon/typhoon/blob/master/aws/con
|
|||
| dns_zone | AWS Route53 DNS zone | "aws.example.com" |
|
||||
| dns_zone_id | AWS Route53 DNS zone id | "Z3PAABBCFAKEC0" |
|
||||
| ssh_authorized_key | SSH public key for user 'core' | "ssh-rsa AAAAB3NZ..." |
|
||||
| asset_dir | Path to a directory where generated assets should be placed (contains secrets) | "/home/user/.secrets/clusters/tempest" |
|
||||
| asset_dir | Absolute path to a directory where generated assets should be placed (contains secrets) | "/home/user/.secrets/clusters/tempest" |
|
||||
|
||||
#### DNS Zone
|
||||
|
||||
|
|
@ -191,7 +191,7 @@ resource "aws_route53_zone" "zone-for-clusters" {
|
|||
}
|
||||
```
|
||||
|
||||
Reference the DNS zone id with `"${aws_route53_zone.zone-for-clusters.zone_id}"`.
|
||||
Reference the DNS zone id with `aws_route53_zone.zone-for-clusters.zone_id`.
|
||||
|
||||
!!! tip ""
|
||||
If you have an existing domain name with a zone file elsewhere, just delegate a subdomain that can be managed on Route53 (e.g. aws.mydomain.com) and [update nameservers](http://docs.aws.amazon.com/Route53/latest/DeveloperGuide/SOA-NSrecords.html).
|
||||
|
|
@ -205,12 +205,11 @@ Reference the DNS zone id with `"${aws_route53_zone.zone-for-clusters.zone_id}"`
|
|||
| controller_type | EC2 instance type for controllers | "t3.small" | See below |
|
||||
| worker_type | EC2 instance type for workers | "t3.small" | See below |
|
||||
| os_image | AMI channel for a Container Linux derivative | coreos-stable | coreos-stable, coreos-beta, coreos-alpha, flatcar-stable, flatcar-beta, flatcar-alpha, flatcar-edge |
|
||||
| disk_size | Size of the EBS volume in GB | "40" | "100" |
|
||||
| disk_size | Size of the EBS volume in GB | 40 | 100 |
|
||||
| disk_type | Type of the EBS volume | "gp2" | standard, gp2, io1 |
|
||||
| disk_iops | IOPS of the EBS volume | "0" (i.e. auto) | "400" |
|
||||
| worker_target_groups | Target group ARNs to which worker instances should be added | [] | ["${aws_lb_target_group.app.id}"] |
|
||||
| worker_node_labels | List of initial worker node labels | [] | ["worker-pool=default"] |
|
||||
| worker_price | Spot price in USD for workers. Leave as default empty string for regular on-demand instances | "" | "0.10" |
|
||||
| disk_iops | IOPS of the EBS volume | 0 (i.e. auto) | 400 |
|
||||
| worker_target_groups | Target group ARNs to which worker instances should be added | [] | [aws_lb_target_group.app.id] |
|
||||
| worker_price | Spot price in USD for worker instances or 0 to use on-demand instances | 0/null | 0.10 |
|
||||
| controller_clc_snippets | Controller Container Linux Config snippets | [] | [example](/advanced/customization/) |
|
||||
| worker_clc_snippets | Worker Container Linux Config snippets | [] | [example](/advanced/customization/) |
|
||||
| networking | Choice of networking provider | "calico" | "calico" or "flannel" |
|
||||
|
|
@ -218,7 +217,7 @@ Reference the DNS zone id with `"${aws_route53_zone.zone-for-clusters.zone_id}"`
|
|||
| host_cidr | CIDR IPv4 range to assign to EC2 instances | "10.0.0.0/16" | "10.1.0.0/16" |
|
||||
| pod_cidr | CIDR IPv4 range to assign to Kubernetes pods | "10.2.0.0/16" | "10.22.0.0/16" |
|
||||
| service_cidr | CIDR IPv4 range to assign to Kubernetes services | "10.3.0.0/16" | "10.3.0.0/24" |
|
||||
| cluster_domain_suffix | FQDN suffix for Kubernetes services answered by coredns. | "cluster.local" | "k8s.example.com" |
|
||||
| worker_node_labels | List of initial worker node labels | [] | ["worker-pool=default"] |
|
||||
|
||||
Check the list of valid [instance types](https://aws.amazon.com/ec2/instance-types/).
|
||||
|
||||
|
|
|
|||
|
|
@ -191,7 +191,7 @@ resource "aws_route53_zone" "zone-for-clusters" {
|
|||
}
|
||||
```
|
||||
|
||||
Reference the DNS zone id with `"${aws_route53_zone.zone-for-clusters.zone_id}"`.
|
||||
Reference the DNS zone id with `aws_route53_zone.zone-for-clusters.zone_id`.
|
||||
|
||||
!!! tip ""
|
||||
If you have an existing domain name with a zone file elsewhere, just delegate a subdomain that can be managed on Route53 (e.g. aws.mydomain.com) and [update nameservers](http://docs.aws.amazon.com/Route53/latest/DeveloperGuide/SOA-NSrecords.html).
|
||||
|
|
@ -205,12 +205,11 @@ Reference the DNS zone id with `"${aws_route53_zone.zone-for-clusters.zone_id}"`
|
|||
| controller_type | EC2 instance type for controllers | "t3.small" | See below |
|
||||
| worker_type | EC2 instance type for workers | "t3.small" | See below |
|
||||
| os_image | AMI channel for Fedora CoreOS | not yet used | ? |
|
||||
| disk_size | Size of the EBS volume in GB | "40" | "100" |
|
||||
| disk_size | Size of the EBS volume in GB | 40 | 100 |
|
||||
| disk_type | Type of the EBS volume | "gp2" | standard, gp2, io1 |
|
||||
| disk_iops | IOPS of the EBS volume | "0" (i.e. auto) | "400" |
|
||||
| worker_target_groups | Target group ARNs to which worker instances should be added | [] | ["${aws_lb_target_group.app.id}"] |
|
||||
| worker_node_labels | List of initial worker node labels | [] | ["worker-pool=default"] |
|
||||
| worker_price | Spot price in USD for workers. Leave as default empty string for regular on-demand instances | "" | "0.10" |
|
||||
| disk_iops | IOPS of the EBS volume | 0 (i.e. auto) | 400 |
|
||||
| worker_target_groups | Target group ARNs to which worker instances should be added | [] | [aws_lb_target_group.app.id] |
|
||||
| worker_price | Spot price in USD for worker instances or 0 to use on-demand instances | 0 | 0.10 |
|
||||
| controller_snippets | Controller Fedora CoreOS Config snippets | [] | UNSUPPORTED |
|
||||
| worker_clc_snippets | Worker Fedora CoreOS Config snippets | [] | UNSUPPORTED |
|
||||
| networking | Choice of networking provider | "calico" | "calico" or "flannel" |
|
||||
|
|
@ -218,7 +217,7 @@ Reference the DNS zone id with `"${aws_route53_zone.zone-for-clusters.zone_id}"`
|
|||
| host_cidr | CIDR IPv4 range to assign to EC2 instances | "10.0.0.0/16" | "10.1.0.0/16" |
|
||||
| pod_cidr | CIDR IPv4 range to assign to Kubernetes pods | "10.2.0.0/16" | "10.22.0.0/16" |
|
||||
| service_cidr | CIDR IPv4 range to assign to Kubernetes services | "10.3.0.0/16" | "10.3.0.0/24" |
|
||||
| cluster_domain_suffix | FQDN suffix for Kubernetes services answered by coredns. | "cluster.local" | "k8s.example.com" |
|
||||
| worker_node_labels | List of initial worker node labels | [] | ["worker-pool=default"] |
|
||||
|
||||
Check the list of valid [instance types](https://aws.amazon.com/ec2/instance-types/).
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue