85 lines
4.0 KiB
Python
85 lines
4.0 KiB
Python
# Copyright 2018 AT&T Intellectual Property. All other rights reserved.
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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 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 drydock_provisioner.orchestrator.validations.validators import Validators
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class RationalNetworkBond(Validators):
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def __init__(self):
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super().__init__('Network Bond Rationality', 'DD1006')
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def run_validation(self, site_design, orchestrator=None):
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"""
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This check ensures that each NetworkLink has a rational bonding setup.
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If the bonding mode is set to 'disabled' then it ensures that no other options are specified.
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If the bonding mode it set to '802.3ad' then it ensures that the bonding up delay and the bonding down delay
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are both greater then or equal to the mon rate.
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If the bonding mode is set to active-backup or balanced-rr then it ensures that the bonding hash and the
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bonding peer rate are both NOT defined.
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"""
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network_links = site_design.network_links or []
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for network_link in network_links:
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bonding_mode = network_link.bonding_mode
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if bonding_mode == 'disabled':
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# check to make sure nothing else is specified
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if any([
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getattr(network_link, x) for x in [
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'bonding_peer_rate', 'bonding_xmit_hash',
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'bonding_mon_rate', 'bonding_up_delay',
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'bonding_down_delay'
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]
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]):
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msg = 'If bonding mode is disabled no other bond option can be specified'
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self.report_error(
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msg, [network_link.doc_ref],
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"Enable a bonding mode or remove the bond options.")
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elif bonding_mode == '802.3ad':
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# check if up_delay and down_delay are >= mon_rate
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mon_rate = network_link.bonding_mon_rate
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if network_link.bonding_up_delay < mon_rate:
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msg = ('Up delay %d is less than mon rate %d' %
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(network_link.bonding_up_delay, mon_rate))
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self.report_error(msg, [
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network_link.doc_ref
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], "Link up delay must be equal or greater than the mon_rate"
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)
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if network_link.bonding_down_delay < mon_rate:
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msg = ('Down delay %d is less than mon rate %d' %
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(network_link.bonding_down_delay, mon_rate))
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self.report_error(msg, [
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network_link.doc_ref
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], "Link down delay must be equal or greater than the mon_rate"
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)
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elif bonding_mode in ['active-backup', 'balanced-rr']:
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# make sure hash and peer_rate are NOT defined
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if network_link.get('bonding_xmit_hash'):
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msg = ('Hash cannot be defined if bond mode is %s' %
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(bonding_mode))
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self.report_error(
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msg, [network_link.doc_ref],
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"Hash mode is only applicable to LACP (802.3ad)")
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if network_link.get('bonding_peer_rate'):
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msg = ('Peer rate cannot be defined if bond mode is %s' %
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(bonding_mode))
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self.report_error(
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msg, [network_link.doc_ref],
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"Peer rate is only applicable to LACP (802.3ad)")
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return
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