Add an option to specify the tftp bind host IP

Change-Id: Iea204fe993ecc9e3a273491c083e06a78ee0e19d

manifests/pxe.pp

@@ -43,6 +43,10 @@
 #   (optional) Array of PXE boot files to copy from $syslinux_path to $tftp_root.
 #   Defaults to '$::ironic::params::syslinux_files'
 #
+# [*tftp_bind_host*]
+#   (optional) The IP address xinetd will listen on for TFTP.
+#   Defaults to undef (listen on all ip addresses).
+#
 class ironic::pxe (
   $package_ensure = 'present',
   $tftp_root      = '/tftpboot',
@@ -50,6 +54,7 @@ class ironic::pxe (
   $http_port      = '8088',
   $syslinux_path  = $::ironic::params::syslinux_path,
   $syslinux_files = $::ironic::params::syslinux_files,
+  $tftp_bind_host = undef,
 ) inherits ::ironic::params {
 
   include ::ironic::deps
@@ -101,6 +106,7 @@ class ironic::pxe (
 
   xinetd::service { 'tftp':
     port        => '69',
+    bind        => $tftp_bind_host,
     protocol    => 'udp',
     server_args => "${options} ${tftp_root_real}",
     server      => '/usr/sbin/in.tftpd',

releasenotes/notes/tftp-bind-ip-0a042cd836dd53f9.yaml

@@ -0,0 +1,4 @@
+---
+features:
+  - New option "tftp_bind_host" added to specify
+    IP address TFTP will bind too

spec/classes/ironic_pxe_spec.rb

@@ -76,6 +76,7 @@ describe 'ironic::pxe' do
           :tftp_root => '/var/lib/tftpboot',
           :http_root => '/var/www/httpboot',
           :http_port => 3816,
+          :tftp_bind_host => '1.2.3.4',
         )
       end
 
@@ -119,6 +120,11 @@ describe 'ironic::pxe' do
           'backup'  => false,
         )
       end
+      it 'should setup tftp xinetd service' do
+        is_expected.to contain_xinetd__service('tftp').with(
+         'bind' => '1.2.3.4',
+        )
+      end
     end
     context 'when excluding syslinux' do
       before :each do