terraform-hcloud

A simple and opinionated module to create servers in Hetzner Cloud and - by default - to provision the servers with Ansible first and then install Kubernetes with Rancher, but both of these are optional. See the variables file for the available configuration settings.

Usage

Add the provider to your main.tf:

terraform {
  required_providers {
    hcloud = {
      source  = "hetznercloud/hcloud"
      version = "~> 1.23.0"
    }
  }
}

provider "hcloud" {
  token = var.hcloud_token
}

Example config:

cluster_name    = ...
ssh_private_key = "~/.ssh/id_rsa"
ssh_public_key  = "~/.ssh/id_rsa.pub"

install_ansible_dependencies = true
ansible_playbook_path       = ...
ansible_vault_password_path = ...

run_rancher_deploy = true

servers = {
  1 = {
    name               = "master"
    private_ip_address = "10.0.0.2"
    server_type        = "cx41"
    image              = "centos-7"
    location           = "nbg1"
    backups            = true
    roles              = "--etcd --controlplane" # to deploy Kubernetes with Rancher
    user_data_file     = "cloud-init.conf"
  },

  2 = {
    name               = "worker"
    private_ip_address = "10.0.0.3"
    server_type        = "cx41"
    image              = "centos-7"
    location           = "nbg1"
    backups            = true
    roles              = "--worker" # to deploy Kubernetes with Rancher
    user_data_file     = "cloud-init.conf"
  },

  ...
}

Development

• Hetzner Cloud service: https://hetzner.com/
• Hetzner Cloud API Documentation: https://docs.hetzner.cloud/
• Hetzner Terraform Cloud Provider Documentation: https://registry.terraform.io/providers/hetznercloud/hcloud/latest/docs