Add new base and fake driver classes.

ironic/drivers/__init__.py

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+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2013 Hewlett-Packard Development Company, L.P.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.

ironic/drivers/base.py

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+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+# -*- encoding: utf-8 -*-
+#
+# Copyright 2013 Hewlett-Packard Development Company, L.P.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+"""
+Base classes for drivers
+"""
+
+import abc
+
+
+class DeploymentDriver(object):
+    """Base class for hardware deployment drivers."""
+
+    __metaclass__ = abc.ABCMeta
+
+    @abc.abstractmethod
+    def __init__(self):
+        """Constructor."""
+
+    @classmethod
+    @abc.abstractmethod
+    def is_capable(self):
+        """Check if this driver is capable of handling the givens."""
+
+    @abc.abstractmethod
+    def activate_bootloader(self):
+        """Prepare the bootloader for this deployment."""
+
+    @abc.abstractmethod
+    def deactivate_bootloader(self):
+        """Tear down the bootloader for this deployment."""
+
+    @abc.abstractmethod
+    def activate_node(self):
+        """Perform post-power-on operations for this deployment."""
+
+    @abc.abstractmethod
+    def deactivate_node(self):
+        """Perform pre-power-off operations for this deployment."""
+
+
+class BMCDriver(object):
+    """Base class for baseboard management controller drivers."""
+
+    __metaclass__ = abc.ABCMeta
+
+    @abc.abstractmethod
+    def __init__(self):
+        """Constructor."""
+
+    @classmethod
+    @abc.abstractmethod
+    def is_capable(self):
+        """Check if this driver is capable of handling the givens."""
+
+    @abc.abstractmethod
+    def start_console(self):
+        """Start a remote console for this BMC."""
+
+    @abc.abstractmethod
+    def stop_console(self):
+        """Stop the remote console session for this BMC."""
+
+    @abc.abstractmethod
+    def get_power_state(self):
+        """Return the power state."""
+
+    @abc.abstractmethod
+    def set_power_state(self):
+        """Set the power state."""
+
+    @abc.abstractmethod
+    def reboot(self):
+        """Perform a hard reboot."""

ironic/drivers/fake.py

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+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+# -*- encoding: utf-8 -*-
+#
+# Copyright 2013 Hewlett-Packard Development Company, L.P.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+"""
+Fake drivers used in testing.
+"""
+
+from ironic.drivers import base
+
+
+class FakeDeploymentDriver(base.DeploymentDriver):
+    def __init__(self):
+        pass
+
+    @classmethod
+    def is_capable(self):
+        return True
+
+    def activate_bootloader(self):
+        pass
+
+    def deactivate_bootloader(self):
+        pass
+
+    def activate_node(self):
+        pass
+
+    def deactivate_node(self):
+        pass
+
+
+class BMCDriver(object):
+    def __init__(self):
+        pass
+
+    @classmethod
+    def is_capable(self):
+        return True
+
+    def start_console(self):
+        pass
+
+    def stop_console(self):
+        pass
+
+    def attach_console(self):
+        pass
+
+    def get_power_state(self):
+        pass
+
+    def set_power_state(self):
+        pass
+
+    def reboot(self):
+        pass