Allow unsupported redfish set_boot_mode

Currently if the baremetal boot mode is unknown and the driver doesn't
support setting the boot mode then the error is logged and deployment
continues.

However if the BMC doesn't support getting or setting the boot mode
then setting the boot mode raises an error which results in the deploy
failing. This is the case for HPE Gen9 baremetal, which doesn't have a
'BootSourceOverrideMode' attribute in its system Boot field, and
raises a 400 iLO.2.14.UnsupportedOperation in response to setting the
boot mode.

This is raised from set_boot_mode as a RedfishError. This change
raises UnsupportedDriverExtension exception when the 'mode' attribute
is missing from the 'boot' field, allowing the deployment to continue.

Change-Id: I360ff8180be252de21f5fcd2208947087e332a39

1 files changed, 13 insertions, 0 deletions

diff --git a/ironic/drivers/modules/redfish/management.py b/ironic/drivers/modules/redfish/management.py
index 118829102..32233903c 100644
--- a/ironic/drivers/modules/redfish/management.py
+++ b/ironic/drivers/modules/redfish/management.py
@@ -303,6 +303,19 @@ class RedfishManagement(base.ManagementInterface):
                          {'node': task.node.uuid, 'mode': mode,
                           'error': e})
             LOG.error(error_msg)
+
+            # NOTE(sbaker): Some systems such as HPE Gen9 do not support
+            # getting or setting the boot mode. When setting failed and the
+            # mode attribute is missing from the boot field, raising
+            # UnsupportedDriverExtension will allow the deploy to continue.
+            if system.boot.get('mode') is None:
+                LOG.info(_('Attempt to set boot mode on node %(node)s '
+                           'failed to set boot mode as the node does not '
+                           'appear to support overriding the boot mode. '
+                           'Possibly partial Redfish implementation?'),
+                         {'node': task.node.uuid})
+                raise exception.UnsupportedDriverExtension(
+                    driver=task.node.driver, extension='set_boot_mode')
             raise exception.RedfishError(error=error_msg)
 
     def get_boot_mode(self, task):