cyborg/cyborg/agent/manager.py

76 lines
2.9 KiB
Python

# -*- coding: utf-8 -*-
#
# 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.
import oslo_messaging as messaging
from oslo_service import periodic_task
from cyborg.accelerator.drivers.fpga.base import FPGADriver
from cyborg.agent.resource_tracker import ResourceTracker
from cyborg.agent.rpcapi import AgentAPI
from cyborg.image.api import API as ImageAPI
from cyborg.conductor import rpcapi as cond_api
from cyborg.conf import CONF
class AgentManager(periodic_task.PeriodicTasks):
"""Cyborg Agent manager main class."""
RPC_API_VERSION = '1.0'
target = messaging.Target(version=RPC_API_VERSION)
def __init__(self, topic, host=None):
super(AgentManager, self).__init__(CONF)
self.topic = topic
self.host = host or CONF.host
self.fpga_driver = FPGADriver()
self.cond_api = cond_api.ConductorAPI()
self.agent_api = AgentAPI()
self.image_api = ImageAPI()
self._rt = ResourceTracker(host, self.cond_api)
def periodic_tasks(self, context, raise_on_error=False):
return self.run_periodic_tasks(context, raise_on_error=raise_on_error)
def hardware_list(self, context, values):
"""List installed hardware."""
pass
def fpga_program(self, context, deployable_uuid, image_uuid):
""" Program a FPGA regoin, image can be a url or local file"""
# TODO (Shaohe Feng) Get image from glance.
# And add claim and rollback logical.
path = self._download_bitstream(context, image_uuid)
dep = self.cond_api.deployable_get(context, deployable_uuid)
driver = self.fpga_driver.create(dep.vendor)
driver.program(dep.address, path)
def _download_bitstream(self, context, bitstream_uuid):
"""download the bistream
:param context: the context
:param bistream_uuid: v4 uuid of the bitstream to reprogram
:returns: the path to bitstream downloaded, None if fail to download
"""
download_path = "/tmp/" + bitstream_uuid + ".bin"
self.image_api.download(context,
bitstream_uuid,
dest_path=download_path)
return download_path
@periodic_task.periodic_task(run_immediately=True)
def update_available_resource(self, context, startup=True):
"""update all kinds of accelerator resources from their drivers."""
self._rt.update_usage(context)