126 lines
3.6 KiB
Python
126 lines
3.6 KiB
Python
# Copyright 2021 Acme Gating, LLC
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#
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# 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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#
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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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import math
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import logging
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import cachetools.func
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from nodepool.driver.utils import QuotaInformation, RateLimiter
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from nodepool.driver import statemachine
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class Instance(statemachine.Instance):
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def __init__(self, vm):
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self.metadata = {}
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self.external_id = 'test'
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self.interface_ip = 'fake'
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self.public_ipv4 = 'fake'
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self.private_ipv4 = 'fake'
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self.public_ipv6 = 'fake'
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self.region = 'region'
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self.az = 'az'
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class DeleteStateMachine(statemachine.StateMachine):
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VM_DELETING = 'deleting vm'
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COMPLETE = 'complete'
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def __init__(self, adapter, external_id):
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super().__init__()
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self.adapter = adapter
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self.external_id = external_id
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def advance(self):
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if self.state == self.START:
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self.state = self.VM_DELETING
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if self.state == self.VM_DELETING:
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self.adapter._deleteVirtualMachine(self.external_id)
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self.state = self.COMPLETE
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if self.state == self.COMPLETE:
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self.complete = True
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return True
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class CreateStateMachine(statemachine.StateMachine):
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VM_CREATING = 'creating vm'
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COMPLETE = 'complete'
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def __init__(self, adapter, hostname, label, metadata, retries):
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super().__init__()
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self.adapter = adapter
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self.retries = retries
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self.metadata = metadata
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self.hostname = hostname
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self.label = label
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self.vm = None
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def advance(self):
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if self.state == self.START:
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self.external_id = self.hostname
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self.state = self.VM_CREATING
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if self.state == self.VM_CREATING:
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self.adapter._createVirtualMachine(self.hostname)
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self.state = self.COMPLETE
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if self.state == self.COMPLETE:
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self.complete = True
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return Instance(self.vm)
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class Adapter(statemachine.Adapter):
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log = logging.getLogger("nodepool.driver.example.Adapter")
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def __init__(self, provider_config):
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self.provider_config = provider_config
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self.rate_limiter = RateLimiter(provider_config.name,
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provider_config.rate_limit)
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self.cloud = object()
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def getCreateStateMachine(self, hostname, label, metadata, retries):
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return CreateStateMachine(self, hostname, label, metadata, retries)
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def getDeleteStateMachine(self, external_id):
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return DeleteStateMachine(self, external_id)
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def cleanupLeakedResources(self, known_nodes, metadata):
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pass
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def listInstances(self):
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for vm in self._listVirtualMachines():
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yield Instance(vm)
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def getQuotaLimits(self):
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return QuotaInformation(default=math.inf)
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def getQuotaForLabel(self, label):
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return QuotaInformation(instances=1)
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# Local implementation below
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@cachetools.func.ttl_cache(maxsize=1, ttl=10)
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def _listVirtualMachines(self):
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return []
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def _createVirtualMachine(self, hostname):
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pass
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def _deleteVirtualMachine(self, external_id):
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pass
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