A sample config to set up openbsd on vultr

vultr_openbsd.tf

// Configure the Vultr provider.·                                               
// Alternatively, export the API key as an environment variable: `export VULTR_API_KEY=<your-vultr-api-key>`.
provider "vultr" {
  api_key = "<api key>"
}

// Find the ID of the Silicon Valley region.
data "vultr_region" "seattle" {
  filter {
    name   = "name"
    values = ["Seattle"]
  }
}

// Find the ID for CoreOS Container Linux.
data "vultr_os" "openbsd" {
  filter {
    name   = "family"
    values = ["openbsd"]
  }
}
// Find the ID for a starter plan.
data "vultr_plan" "starter" {
  filter {
    name   = "price_per_month"
    values = ["5.00"]
  }

  filter {
    name   = "ram"
    values = ["1024"]
  }
}

// Create a Vultr virtual machine.
resource "vultr_instance" "example" {
  name              = "example"
  region_id         = "${data.vultr_region.seattle.id}"
  plan_id           = "${data.vultr_plan.starter.id}"
  os_id             = "${data.vultr_os.openbsd.id}"
  hostname          = "example"
  tag               = "openbsd-test"
  firewall_group_id = "${vultr_firewall_group.example.id}"
}

// Create a new firewall group.
resource "vultr_firewall_group" "example" {
  description = "example group"
}

// Add a firewall rule to the group allowing SSH access.
resource "vultr_firewall_rule" "ssh" {
  firewall_group_id = "${vultr_firewall_group.example.id}"
  cidr_block        = "0.0.0.0/0"
  protocol          = "tcp"
  from_port         = 22
  to_port           = 22
}

// Add a firewall rule to the group allowing ICMP.
resource "vultr_firewall_rule" "icmp" {
  firewall_group_id = "${vultr_firewall_group.example.id}"
  cidr_block        = "0.0.0.0/0"
  protocol          = "icmp"       
  }

// Create a DNS domain.
//resource "vultr_dns_domain" "<your domain>" {
//  domain = "<your domain>"
//  ip = "<main ip, could be ${vultr_instance.example.ipv4_address} as well"
//}

// Create a new DNS record.
resource "vultr_dns_record" "example_web" {
  domain = "<main domain>"
  name   = "subdomain"
  type   = "A"
  data   = "${vultr_instance.example.ipv4_address}"
  ttl    = 300
}

// Create a new SSH key.
resource "vultr_ssh_key" "laptop" {
  name       = "laptop"
  public_key = "<public key text>"
}