Add storage and image management support

Signed-off-by: Zhenchao Liu <[email protected]>

virttest/vt_agent/agents/__init__.py

@@ -0,0 +1,2 @@
+from .image_agent import image_agent
+from .resource_backing_agent import resbacking_agent

virttest/vt_agent/agents/image_agent.py

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+from .images import get_image_handler
+
+
+class _ImageAgent(object):
+
+    def __init__(self):
+        self._images = dict()
+
+    def info_image(self, image_config):
+        pass
+
+    def update_image(self, image_config, update_config):
+        cmd, arguments = update_config.popitems()
+        image_type = image_config["meta"]["type"]
+        handler = get_image_handler(image_type, cmd)
+        handler(image_config, arguments)
+
+
+image_agent = _ImageAgent()

virttest/vt_agent/agents/images/__init__.py

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+from .qemu import get_qemu_image_handler
+#from .libvirt import get_libvirt_image_handler
+
+
+_image_handler_getters = dict()
+_image_handler_getters["qemu"] = get_qemu_image_handler
+#_image_handler_getters["libvirt"] = get_libvirt_image_handler
+
+
+def get_image_handler(image_type, cmd):
+    getter = _image_handler_getters.get(image_type)
+    return getter(cmd)
+
+
+__all__ = ["get_image_handler"]

virttest/vt_agent/agents/images/qemu/__init__.py

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+import qemu_image_handlers
+
+
+_qemu_image_handlers = {
+    "create": qemu_image_handlers.create,
+    "destroy": qemu_image_handlers.destroy,
+}
+
+
+def get_qemu_image_handler(cmd):
+    return _qemu_image_handlers.get(cmd)
+
+
+__all__ = ["get_qemu_image_handler"]