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typhoon/google-cloud/flatcar-linux/kubernetes/variables.tf
Dalton Hubble 084e8bea49 Allow custom initial node taints on worker pool nodes
* Add `node_taints` variable to worker modules to set custom
initial node taints on cloud platforms that support auto-scaling
worker pools of heterogeneous nodes (i.e. AWS, Azure, GCP)
* Worker pools could use custom `node_labels` to allowed workloads
to select among differentiated nodes, while custom `node_taints`
allows a worker pool's nodes to be tainted as special to prevent
scheduling, except by workloads that explicitly tolerate the
taint
* Expose `daemonset_tolerations` in AWS, Azure, and GCP kubernetes
cluster modules, to determine whether `kube-system` components
should tolerate the custom taint (advanced use covered in docs)

Rel: #550, #663
Closes #429
2021-04-11 15:00:11 -07:00

138 lines
3.3 KiB
HCL

variable "cluster_name" {
type = string
description = "Unique cluster name (prepended to dns_zone)"
}
# Google Cloud
variable "region" {
type = string
description = "Google Cloud Region (e.g. us-central1, see `gcloud compute regions list`)"
}
variable "dns_zone" {
type = string
description = "Google Cloud DNS Zone (e.g. google-cloud.example.com)"
}
variable "dns_zone_name" {
type = string
description = "Google Cloud DNS Zone name (e.g. example-zone)"
}
# instances
variable "controller_count" {
type = number
description = "Number of controllers (i.e. masters)"
default = 1
}
variable "worker_count" {
type = number
description = "Number of workers"
default = 1
}
variable "controller_type" {
type = string
description = "Machine type for controllers (see `gcloud compute machine-types list`)"
default = "n1-standard-1"
}
variable "worker_type" {
type = string
description = "Machine type for controllers (see `gcloud compute machine-types list`)"
default = "n1-standard-1"
}
variable "os_image" {
type = string
description = "Flatcar Linux image for compute instances (e.g. custom-image)"
}
variable "disk_size" {
type = number
description = "Size of the disk in GB"
default = 40
}
variable "worker_preemptible" {
type = bool
description = "If enabled, Compute Engine will terminate workers randomly within 24 hours"
default = false
}
variable "controller_snippets" {
type = list(string)
description = "Controller Container Linux Config snippets"
default = []
}
variable "worker_snippets" {
type = list(string)
description = "Worker Container Linux Config snippets"
default = []
}
# configuration
variable "ssh_authorized_key" {
type = string
description = "SSH public key for user 'core'"
}
variable "networking" {
type = string
description = "Choice of networking provider (flannel or calico)"
default = "calico"
}
variable "pod_cidr" {
type = string
description = "CIDR IPv4 range to assign Kubernetes pods"
default = "10.2.0.0/16"
}
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
default = "10.3.0.0/16"
}
variable "enable_reporting" {
type = bool
description = "Enable usage or analytics reporting to upstreams (Calico)"
default = false
}
variable "enable_aggregation" {
type = bool
description = "Enable the Kubernetes Aggregation Layer (defaults to false)"
default = false
}
variable "worker_node_labels" {
type = list(string)
description = "List of initial worker node labels"
default = []
}
# unofficial, undocumented, unsupported
variable "cluster_domain_suffix" {
type = string
description = "Queries for domains with the suffix will be answered by coredns. Default is cluster.local (e.g. foo.default.svc.cluster.local) "
default = "cluster.local"
}
variable "daemonset_tolerations" {
type = list(string)
description = "List of additional taint keys kube-system DaemonSets should tolerate (e.g. ['custom-role', 'gpu-role'])"
default = []
}