685f4c456a
PodResources client could be used by sriov cni to obtain devices
allocated for container by sriov device-plugin.
KubeletPodResources service is still in alpha, so it should be
explicitly enabled in kubelet feature-gates:
kubelet --feature-gates KubeletPodResources=true
New config option 'kubelet_root_dir' added to 'sriov' section
that defaults to kubelet default root-dir '/var/lib/kulelet'.
In case kubelet started with non-default root directory passed
via '--root-dir' option, the same value should be configured
in 'kubelet_root_dir'.
Note that if sriov binding driver will be used inside container
'kubelet_root_dir'/pod-resources directory should be mounted
to this container in order to allow communication with kubelet
via gRPC protocol over the unix domain socket.
Partial-Bug: 1826865
Depends-On: https://review.openstack.org/#/c/652629
Change-Id: Icf088b839db079efe9c7647c31be4ead867ed32b
Signed-off-by: Ilya Maximets <i.maximets@samsung.com>
44 lines
1.5 KiB
Python
44 lines
1.5 KiB
Python
# Copyright (c) 2019 Samsung Electronics Co.,Ltd
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from oslo_log import log
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import grpc
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from kuryr_kubernetes.pod_resources import api_pb2
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from kuryr_kubernetes.pod_resources import api_pb2_grpc
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LOG = log.getLogger(__name__)
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POD_RESOURCES_SOCKET = '/pod-resources/kubelet.sock'
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class PodResourcesClient(object):
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def __init__(self, kubelet_root_dir):
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socket = 'unix:' + kubelet_root_dir + POD_RESOURCES_SOCKET
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LOG.debug("Creating PodResourcesClient on socket: %s", socket)
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self._channel = grpc.insecure_channel(socket)
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self._stub = api_pb2_grpc.PodResourcesListerStub(self._channel)
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def list(self):
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try:
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response = self._stub.List(api_pb2.ListPodResourcesRequest())
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LOG.debug("PodResourceResponse: %s", response)
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return response
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except grpc.RpcError as e:
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LOG.error("ListPodResourcesRequest failed: %s", e)
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raise
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