qemu: Support a few more migration_* options

This introduces support for a few more migration_* options for QEMU,
which are used to determine the address/network used during migration.

Change-Id: I5cd32eeee428b0bef53a79f5d8bfe9900e64db22

manifests/migration/qemu.pp

@@ -8,6 +8,15 @@
 #   (optional) Whether or not configure qemu bits.
 #   Defaults to false.
 #
+# [*migration_address*]
+#   (optional) Override the listen address for all incoming migrations.
+#   Defaults to $facts['os_service_default'].
+#
+# [*migration_host*]
+#   (optional) The default hostname or IP address which will be used by
+#   a migration source for transferring migration data to this host.
+#   Defaults to $facts['os_service_default'].
+#
 # [*migration_port_min*]
 #   (optional) Lower limit of port range used for migration.
 #   Defaults to $facts['os_service_default'].
@@ -18,6 +27,8 @@
 #
 class nova::migration::qemu(
   Boolean $configure_qemu = false,
+  $migration_address      = $facts['os_service_default'],
+  $migration_host         = $facts['os_service_default'],
   $migration_port_min     = $facts['os_service_default'],
   $migration_port_max     = $facts['os_service_default'],
 ){
@@ -28,11 +39,15 @@ class nova::migration::qemu(
 
   if $configure_qemu {
     qemu_config {
+      'migration_address':  value => $migration_address;
+      'migration_host':     value => $migration_host;
       'migration_port_min': value => $migration_port_min;
       'migration_port_max': value => $migration_port_max;
     }
   } else {
     qemu_config {
+      'migration_address':  ensure => absent;
+      'migration_host':     ensure => absent;
       'migration_port_min': ensure => absent;
       'migration_port_max': ensure => absent;
     }

releasenotes/notes/qemu-migration-opts-d4d52322ed7c705e.yaml

@@ -0,0 +1,8 @@
+---
+features:
+  - |
+    The following parameters have been added to the ``nova::migration::qemu``
+    class.
+
+    - ``migration_address``
+    - ``migration_host``

spec/classes/nova_migration_qemu_spec.rb

@@ -12,6 +12,8 @@ describe 'nova::migration::qemu' do
 
     context 'when not configuring qemu' do
       it 'should clear all configurations' do
+        is_expected.to contain_qemu_config('migration_address').with_ensure('absent')
+        is_expected.to contain_qemu_config('migration_host').with_ensure('absent')
         is_expected.to contain_qemu_config('migration_port_min').with_ensure('absent')
         is_expected.to contain_qemu_config('migration_port_max').with_ensure('absent')
       end
@@ -24,6 +26,8 @@ describe 'nova::migration::qemu' do
         }
       end
       it 'should configure the default values' do
+        is_expected.to contain_qemu_config('migration_address').with_value('<SERVICE DEFAULT>')
+        is_expected.to contain_qemu_config('migration_host').with_value('<SERVICE DEFAULT>')
         is_expected.to contain_qemu_config('migration_port_min').with_value('<SERVICE DEFAULT>')
         is_expected.to contain_qemu_config('migration_port_max').with_value('<SERVICE DEFAULT>')
       end
@@ -33,11 +37,15 @@ describe 'nova::migration::qemu' do
       let :params do
         {
           :configure_qemu     => true,
+          :migration_address  => '0.0.0.0',
+          :migration_host     => 'host.example.com',
           :migration_port_min => 61138,
           :migration_port_max => 61200,
         }
       end
       it 'should configure the given values' do
+        is_expected.to contain_qemu_config('migration_address').with_value('0.0.0.0')
+        is_expected.to contain_qemu_config('migration_host').with_value('host.example.com')
         is_expected.to contain_qemu_config('migration_port_min').with_value(61138)
         is_expected.to contain_qemu_config('migration_port_max').with_value(61200)
       end