128 lines
4.5 KiB
HCL
128 lines
4.5 KiB
HCL
locals {
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provision_script = var.platform == "windows_amd64" ? "C:/opt/provision.ps1" : "/opt/provision.sh"
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custom_path = dirname("${path.root}/config/custom/")
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custom_config_files = compact(setunion(
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fileset(local.custom_path, "nomad/*.hcl"),
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fileset(local.custom_path, "nomad/${var.role}/*.hcl"),
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fileset(local.custom_path, "nomad/${var.role}/indexed/*${var.index}.hcl"),
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fileset(local.custom_path, "consul/*.json"),
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fileset(local.custom_path, "consul/${var.role}/*.json"),
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fileset(local.custom_path, "consul${var.role}indexed/*${var.index}*.json"),
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fileset(local.custom_path, "vault/*.hcl"),
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fileset(local.custom_path, "vault${var.role}*.hcl"),
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fileset(local.custom_path, "vault${var.role}indexed/*${var.index}.hcl"),
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))
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# abstract-away platform-specific parameter expectations
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_arg = var.platform == "windows_amd64" ? "-" : "--"
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}
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resource "null_resource" "provision_nomad" {
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depends_on = [
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null_resource.upload_custom_configs,
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null_resource.upload_nomad_binary
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]
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# no need to re-run if nothing changes
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triggers = {
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script = data.template_file.provision_script.rendered
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}
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# Run the provisioner as a local-exec'd ssh command as a workaround for
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# Windows remote-exec zero-byte scripts bug:
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# https://github.com/hashicorp/terraform/issues/25634
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#
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# The retry behavior and explicit PasswordAuthenticaiton flag here are to
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# workaround a race with the Windows userdata script that installs the
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# authorized_key. Unfortunately this still results in a bunch of "permission
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# denied" errors while waiting for those keys to be configured.
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provisioner "local-exec" {
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command = "until ssh -o PasswordAuthentication=no -o KbdInteractiveAuthentication=no -o LogLevel=ERROR -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -i ${var.connection.private_key} -p ${var.connection.port} ${var.connection.user}@${var.connection.host} ${data.template_file.provision_script.rendered}; do sleep 5; done"
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}
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}
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data "template_file" "provision_script" {
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template = "${local.provision_script}${data.template_file.arg_nomad_sha.rendered}${data.template_file.arg_nomad_version.rendered}${data.template_file.arg_nomad_binary.rendered}${data.template_file.arg_nomad_enterprise.rendered}${data.template_file.arg_nomad_acls.rendered}${data.template_file.arg_profile.rendered}${data.template_file.arg_role.rendered}${data.template_file.arg_index.rendered}"
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}
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data "template_file" "arg_nomad_sha" {
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template = var.nomad_sha != "" && var.nomad_local_binary == "" ? " ${local._arg}nomad_sha ${var.nomad_sha}" : ""
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}
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data "template_file" "arg_nomad_version" {
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template = var.nomad_version != "" && var.nomad_sha == "" && var.nomad_local_binary == "" ? " ${local._arg}nomad_version ${var.nomad_version}" : ""
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}
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data "template_file" "arg_nomad_binary" {
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template = var.nomad_local_binary != "" ? " ${local._arg}nomad_binary /tmp/nomad" : ""
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}
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data "template_file" "arg_nomad_enterprise" {
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template = var.nomad_enterprise ? " ${local._arg}enterprise" : ""
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}
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data "template_file" "arg_nomad_acls" {
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template = var.nomad_acls ? " ${local._arg}nomad_acls" : ""
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}
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data "template_file" "arg_profile" {
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template = var.profile != "" ? " ${local._arg}config_profile ${var.profile}" : ""
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}
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data "template_file" "arg_role" {
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template = var.role != "" ? " ${local._arg}role ${var.role}" : ""
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}
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data "template_file" "arg_index" {
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template = var.index != "" ? " ${local._arg}index ${var.index}" : ""
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}
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resource "null_resource" "upload_nomad_binary" {
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count = var.nomad_local_binary != "" ? 1 : 0
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depends_on = [null_resource.upload_custom_configs]
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triggers = {
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nomad_binary_sha = filemd5(var.nomad_local_binary)
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}
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connection {
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type = "ssh"
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user = var.connection.user
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host = var.connection.host
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port = var.connection.port
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private_key = file(var.connection.private_key)
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timeout = "15m"
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}
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provisioner "file" {
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source = var.nomad_local_binary
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destination = "/tmp/nomad"
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}
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}
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resource "null_resource" "upload_custom_configs" {
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count = var.profile == "custom" ? 1 : 0
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triggers = {
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hashes = "${join(",", [for file in local.custom_config_files : filemd5("${local.custom_path}/${file}")])}"
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}
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connection {
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type = "ssh"
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user = var.connection.user
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host = var.connection.host
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port = var.connection.port
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private_key = file(var.connection.private_key)
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timeout = "15m"
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}
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provisioner "file" {
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source = local.custom_path
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destination = "/tmp/"
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}
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}
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