schema: add nixos machine_type

Author: ivan

lib/cli.ex

@@ -236,7 +236,7 @@ defmodule MachineManager.CLI do
 						hostname: [required: true, help: hostname_help],
 					],
 					options: [
-						type:             [short: "-y", long: "--type",             required: false, default: "debian", help: ~s[Type ("debian" or "edgerouter")]],
+						type:             [short: "-y", long: "--type",             required: false, default: "debian", help: ~s[Type ("debian" or "nixos" or "edgerouter")]],
 						release:          [short: "-r", long: "--release",          required: true,                     help: ~s[Debian release (e.g. "sid") or "unmanaged"]],
 						addresses:        [short: "-a", long: "--address",          required: true, multiple: true,     help: "Network and IPv4 address specified as NETWORK=ADDRESS", parser: &parse_address/1],
 						ssh_user:         [short: "-u", long: "--ssh-user",         required: false, default: "root",   help: "SSH user"],

lib/core.ex

@@ -1062,7 +1062,7 @@ defmodule MachineManager.Core do
 	"""
 	def add(hostname, options) do
 		{wireguard_port, wireguard_ip, wireguard_privkey, wireguard_pubkey} = case options.type do
-			"debian" ->
+			t when t in ["debian", "nixos"] ->
 				wireguard_ip      = to_ip_postgrex(get_unused_wireguard_ip())
 				wireguard_privkey = WireGuard.make_wireguard_privkey()
 				wireguard_pubkey  = WireGuard.get_wireguard_pubkey(wireguard_privkey)

schema.sql

@@ -2,7 +2,7 @@ SET ROLE machine_manager;
 
 CREATE DOMAIN hostname         AS varchar(32)  CHECK (VALUE ~ '\A[-_a-z0-9]+\Z');
 CREATE DOMAIN netname          AS varchar(32)  CHECK (VALUE ~ '\A[-_a-z0-9]+\Z');
-CREATE DOMAIN machine_type     AS varchar(10)  CHECK (VALUE = 'debian' OR VALUE = 'edgerouter');
+CREATE DOMAIN machine_type     AS varchar(10)  CHECK (VALUE = 'debian' OR VALUE = 'edgerouter' OR VALUE = 'nixos');
 CREATE DOMAIN port             AS integer      CHECK (VALUE > 0 AND VALUE <= 65536);
 CREATE DOMAIN wireguard_key    AS bytea        CHECK (length(VALUE) = 44);
  -- Match default /etc/adduser.conf NAME_REGEX