b77460ec34
* contrib/terraform/exoscale: Rework SSH public keys Exoscale has a few limitations with `exoscale_ssh_keypair` resources. Creating several clusters with these scripts may lead to an error like: ``` Error: API error ParamError 431 (InvalidParameterValueException 4350): The key pair "lj-sc-ssh-key" already has this fingerprint ``` This patch reworks handling of SSH public keys. Specifically, we rely on the more cloud-agnostic way of configuring SSH public keys via `cloud-init`. * contrib/terraform/exoscale: terraform fmt * contrib/terraform/exoscale: Add terraform validate * contrib/terraform/exoscale: Inline public SSH keys The Terraform scripts need to install some SSH key, so that Kubespray (i.e., the "Ansible part") can take over. Initially, we pointed the Terraform scripts to `~/.ssh/id_rsa.pub`. This proved to be suboptimal: Operators sharing responbility for a cluster risk unnecessarily replacing resources. Therefore, it has been determined that it's best to inline the public SSH keys. The chosen variable `ssh_public_keys` provides some uniformity with `contrib/azurerm`. * Fix Terraform Exoscale test * Fix Terraform 0.14 test
50 lines
1.6 KiB
HCL
50 lines
1.6 KiB
HCL
provider "exoscale" {}
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module "kubernetes" {
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source = "./modules/kubernetes-cluster"
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prefix = var.prefix
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machines = var.machines
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ssh_public_keys = var.ssh_public_keys
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ssh_whitelist = var.ssh_whitelist
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api_server_whitelist = var.api_server_whitelist
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nodeport_whitelist = var.nodeport_whitelist
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}
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#
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# Generate ansible inventory
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#
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data "template_file" "inventory" {
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template = file("${path.module}/templates/inventory.tpl")
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vars = {
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connection_strings_master = join("\n", formatlist("%s ansible_user=ubuntu ansible_host=%s ip=%s etcd_member_name=etcd%d",
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keys(module.kubernetes.master_ip_addresses),
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values(module.kubernetes.master_ip_addresses).*.public_ip,
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values(module.kubernetes.master_ip_addresses).*.private_ip,
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range(1, length(module.kubernetes.master_ip_addresses) + 1)))
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connection_strings_worker = join("\n", formatlist("%s ansible_user=ubuntu ansible_host=%s ip=%s",
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keys(module.kubernetes.worker_ip_addresses),
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values(module.kubernetes.worker_ip_addresses).*.public_ip,
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values(module.kubernetes.worker_ip_addresses).*.private_ip))
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list_master = join("\n", keys(module.kubernetes.master_ip_addresses))
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list_worker = join("\n", keys(module.kubernetes.worker_ip_addresses))
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api_lb_ip_address = module.kubernetes.control_plane_lb_ip_address
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}
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}
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resource "null_resource" "inventories" {
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provisioner "local-exec" {
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command = "echo '${data.template_file.inventory.rendered}' > ${var.inventory_file}"
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}
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triggers = {
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template = data.template_file.inventory.rendered
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}
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}
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