resource "random_string" "server" { length = 3 lower = true special = false number = false upper = false keepers = { # We re-create the id (and server) whenever one of those attributes # changes. name = var.name public_key = var.public_key additional_public_keys = join(",", var.additional_public_keys) placement_group_id = var.placement_group_id private_ipv4 = var.private_ipv4 } } resource "hcloud_server" "server" { name = local.name image = "ubuntu-20.04" rescue = "linux64" server_type = var.server_type location = var.location ssh_keys = var.ssh_keys firewall_ids = var.firewall_ids placement_group_id = var.placement_group_id user_data = data.template_cloudinit_config.config.rendered labels = var.labels # Prevent destroying the whole cluster if the user changes # any of the attributes that force to recreate the servers. lifecycle { ignore_changes = [ location, ssh_keys, user_data, ] } connection { user = "root" private_key = local.ssh_private_key agent_identity = local.ssh_identity host = self.ipv4_address } # Install MicroOS provisioner "remote-exec" { inline = [ "set -ex", "apt-get update", "apt-get install -y aria2", "aria2c --follow-metalink=mem https://download.opensuse.org/tumbleweed/appliances/openSUSE-MicroOS.x86_64-OpenStack-Cloud.qcow2.meta4", "qemu-img convert -p -f qcow2 -O host_device $(ls -a | grep -ie '^opensuse.*microos.*qcow2$') /dev/sda", ] } # Issue a reboot command and wait for MicroOS to reboot and be ready provisioner "local-exec" { command = <<-EOT ssh ${local.ssh_args} root@${self.ipv4_address} '(sleep 2; reboot)&'; sleep 3 until ssh ${local.ssh_args} -o ConnectTimeout=2 root@${self.ipv4_address} true 2> /dev/null do echo "Waiting for MicroOS to reboot and become available..." sleep 3 done EOT } # Install k3s-selinux (compatible version) provisioner "remote-exec" { inline = [ "set -ex", "transactional-update pkg install -y k3s-selinux" ] } # Issue a reboot command and wait for MicroOS to reboot and be ready provisioner "local-exec" { command = <<-EOT ssh ${local.ssh_args} root@${self.ipv4_address} '(sleep 2; reboot)&'; sleep 3 until ssh ${local.ssh_args} -o ConnectTimeout=2 root@${self.ipv4_address} true 2> /dev/null do echo "Waiting for MicroOS to reboot and become available..." sleep 3 done EOT } } resource "hcloud_server_network" "server" { ip = var.private_ipv4 server_id = hcloud_server.server.id subnet_id = var.ipv4_subnet_id } data "template_cloudinit_config" "config" { gzip = true base64_encode = true # Main cloud-config configuration file. part { filename = "init.cfg" content_type = "text/cloud-config" content = templatefile( "${path.module}/templates/userdata.yaml.tpl", { hostname = local.name sshAuthorizedKeys = concat([local.ssh_public_key], var.additional_public_keys) } ) } }