38 lines
1.2 KiB
Python
38 lines
1.2 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from oslo_utils import timeutils
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import magnum.conf
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from magnum.objects import magnum_service
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CONF = magnum.conf.CONF
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class ServiceGroup(object):
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def __init__(self):
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self.service_down_time = CONF.service_down_time
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def service_is_up(self, member):
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if not isinstance(member, magnum_service.MagnumService):
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raise TypeError
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if member.forced_down:
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return False
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last_heartbeat = (member.last_seen_up or
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member.updated_at or member.created_at)
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now = timeutils.utcnow(True)
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elapsed = timeutils.delta_seconds(last_heartbeat, now)
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is_up = abs(elapsed) <= self.service_down_time
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return is_up
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