2023-10-20 09:17:47 -07:00
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# Copyright 2023 Google LLC
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2022-12-18 01:07:24 -08:00
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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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'Prepares descriptors and timeseries for firewall policy resources.'
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import logging
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from . import MetricDescriptor, TimeSeries, register_timeseries
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DESCRIPTOR_ATTRS = {
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'tuples_used': 'Firewall tuples used per policy',
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'tuples_available': 'Firewall tuples limit per policy',
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'tuples_used_ratio': 'Firewall tuples used ratio per policy'
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}
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DESCRIPTOR_LABELS = ('parent', 'name')
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LOGGER = logging.getLogger('net-dash.timeseries.firewall-policies')
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TUPLE_LIMIT = 2000
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@register_timeseries
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def timeseries(resources):
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'Returns used/available/ratio firewall tuples timeseries by policy.'
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LOGGER.info('timeseries')
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for dtype, name in DESCRIPTOR_ATTRS.items():
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yield MetricDescriptor(f'firewall_policy/{dtype}', name, DESCRIPTOR_LABELS,
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dtype.endswith('ratio'))
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for v in resources['firewall_policies'].values():
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tuples = int(v['num_tuples'])
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labels = {'parent': v['parent'], 'name': v['name']}
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yield TimeSeries('firewall_policy/tuples_used', tuples, labels)
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yield TimeSeries('firewall_policy/tuples_available', TUPLE_LIMIT, labels)
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yield TimeSeries('firewall_policy/tuples_used_ratio', tuples / TUPLE_LIMIT,
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labels)
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