Skip nodes under maintenance on baremetal boot config

Cpenstack baremetal configure boot failed on nodes with
maintenance=True. These nodes are skipped now.

Change-Id: I556e8f232b65804a192d1fa5aba2f2e50d8aa57c
Resolves: rhbz#1235325

rdomanager_oscplugin/tests/v1/baremetal/test_baremetal.py

@@ -693,3 +693,18 @@ class TestConfigureBaremetalBoot(fakes.TestBaremetal):
         self.assertRaises(exceptions.Timeout,
                           self.cmd.take_action,
                           parsed_args)
+
+    @mock.patch('openstackclient.common.utils.find_resource', autospec=True)
+    def test_configure_boot_skip_maintenance(self, find_resource_mock):
+
+        find_resource_mock.return_value = mock.Mock(id="IDIDID")
+        bm_client = self.app.client_manager.rdomanager_oscplugin.baremetal()
+        bm_client.node.list.return_value = [
+            mock.Mock(uuid="ABCDEFGH", maintenance=False),
+        ]
+
+        parsed_args = self.check_parser(self.cmd, [], [])
+        self.cmd.take_action(parsed_args)
+
+        self.assertEqual(bm_client.node.list.mock_calls, [mock.call(
+            maintenance=False)])

rdomanager_oscplugin/v1/baremetal.py

@@ -376,7 +376,7 @@ class ConfigureBaremetalBoot(command.Command):
         self.log.debug("Using kernel ID: {0} and ramdisk ID: {1}".format(
             kernel_id, ramdisk_id))
 
-        for node in bm_client.node.list():
+        for node in bm_client.node.list(maintenance=False):
             # NOTE(bnemec): Ironic won't let us update the node while the
             # power_state is transitioning.
             if node.power_state is None: