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typhoon/google-cloud/flatcar-linux/kubernetes/workers/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

113 lines
2.6 KiB
HCL

variable "name" {
type = string
description = "Unique name for the worker pool"
}
variable "cluster_name" {
type = string
description = "Must be set to `cluster_name of cluster`"
}
# Google Cloud
variable "region" {
type = string
description = "Must be set to `region` of cluster"
}
variable "network" {
type = string
description = "Must be set to `network_name` output by cluster"
}
# instances
variable "worker_count" {
type = number
description = "Number of worker compute instances the instance group should manage"
default = 1
}
variable "machine_type" {
type = string
description = "Machine type for compute instances (e.g. gcloud compute machine-types list)"
default = "n1-standard-1"
}
variable "os_image" {
type = string
description = "Flatcar Linux image for compute instanges (e.g. gcloud compute images list)"
}
variable "disk_size" {
type = number
description = "Size of the disk in GB"
default = 40
}
variable "preemptible" {
type = bool
description = "If enabled, Compute Engine will terminate instances randomly within 24 hours"
default = false
}
variable "snippets" {
type = list(string)
description = "Container Linux Config snippets"
default = []
}
# configuration
variable "kubeconfig" {
type = string
description = "Must be set to `kubeconfig` output by cluster"
}
variable "ssh_authorized_key" {
type = string
description = "SSH public key for user 'core'"
}
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 "node_labels" {
type = list(string)
description = "List of initial node labels"
default = []
}
variable "node_taints" {
type = list(string)
description = "List of initial node taints"
default = []
}
# unofficial, undocumented, unsupported, temporary
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 "accelerator_type" {
type = string
default = ""
description = "Google Compute Engine accelerator type (e.g. nvidia-tesla-k80, see gcloud compute accelerator-types list)"
}
variable "accelerator_count" {
type = string
default = "0"
description = "Number of compute engine accelerators"
}