typhoon/digital-ocean/container-linux/kubernetes/controllers.tf

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# Controller Instance DNS records
resource "digitalocean_record" "controllers" {
count = "${var.controller_count}"
# DNS zone where record should be created
domain = "${var.dns_zone}"
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# DNS record (will be prepended to domain)
name = "${var.cluster_name}"
type = "A"
ttl = 300
# IPv4 addresses of controllers
value = "${element(digitalocean_droplet.controllers.*.ipv4_address, count.index)}"
}
# Controller droplet instances
resource "digitalocean_droplet" "controllers" {
count = "${var.controller_count}"
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name = "${var.cluster_name}-controller-${count.index}"
region = "${var.region}"
image = "${var.image}"
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size = "${var.controller_type}"
# network
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ipv6 = true
private_networking = true
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user_data = "${data.ct_config.controller_ign.rendered}"
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ssh_keys = "${var.ssh_fingerprints}"
tags = [
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"${digitalocean_tag.controllers.id}",
]
}
# Tag to label controllers
resource "digitalocean_tag" "controllers" {
name = "${var.cluster_name}-controller"
}
# Controller Container Linux Config
data "template_file" "controller_config" {
template = "${file("${path.module}/cl/controller.yaml.tmpl")}"
vars = {
k8s_dns_service_ip = "${cidrhost(var.service_cidr, 10)}"
k8s_etcd_service_ip = "${cidrhost(var.service_cidr, 15)}"
kubeconfig_ca_cert = "${module.bootkube.ca_cert}"
kubeconfig_kubelet_cert = "${module.bootkube.kubelet_cert}"
kubeconfig_kubelet_key = "${module.bootkube.kubelet_key}"
kubeconfig_server = "${module.bootkube.server}"
}
}
data "ct_config" "controller_ign" {
content = "${data.template_file.controller_config.rendered}"
pretty_print = false
}