Refactor network dashboard to use multiple files (#639)
* Refactor cloud function into multiple files part 1 * Refactor cloud function into multiple files part 2 - networks.py * Refactor cloud function into multiple files part 3 - peerings * Refactor cloud function into multiple files part 4 - peerings * Refactor cloud function into multiple files part 5 - routes * Refactor cloud function into multiple files part 6 - move monitoring metrics client out of separate function * Refactor cloud function into multiple files part 6 - routers.py * Refactor cloud function into multiple files part 7 - the rest * Cleanup after refactoring
This commit is contained in:
David Gleich
GitHub
parent
770f739dad
commit
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#
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# Copyright 2022 Google 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 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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#
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from collections import defaultdict
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from google.protobuf import field_mask_pb2
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from . import metrics, networks, limits
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def get_forwarding_rules_dict(config, layer: str):
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'''
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Calls the Asset Inventory API to get all L4 Forwarding Rules under the GCP organization.
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Parameters:
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config (dict): The dict containing config like clients and limits
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layer (string): the Layer to get Forwarding rules (L4/L7)
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Returns:
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forwarding_rules_dict (dictionary of string: int): Keys are the network links and values are the number of Forwarding Rules per network.
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'''
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read_mask = field_mask_pb2.FieldMask()
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read_mask.FromJsonString('name,versionedResources')
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forwarding_rules_dict = defaultdict(int)
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# TODO: Paging?
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response = config["clients"]["asset_client"].search_all_resources(
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request={
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"scope": f"organizations/{config['organization']}",
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"asset_types": ["compute.googleapis.com/ForwardingRule"],
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"read_mask": read_mask,
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})
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for resource in response:
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internal = False
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network_link = ""
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for versioned in resource.versioned_resources:
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for field_name, field_value in versioned.resource.items():
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if field_name == "loadBalancingScheme":
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internal = (field_value == config["lb_scheme"][layer])
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if field_name == "network":
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network_link = field_value
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if internal:
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if network_link in forwarding_rules_dict:
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forwarding_rules_dict[network_link] += 1
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else:
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forwarding_rules_dict[network_link] = 1
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return forwarding_rules_dict
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def get_forwarding_rules_data(config, metrics_dict, forwarding_rules_dict,
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limit_dict, layer):
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'''
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Gets the data for L4 Internal Forwarding Rules per VPC Network and writes it to the metric defined in forwarding_rules_metric.
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Parameters:
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config (dict): The dict containing config like clients and limits
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metrics_dict (dictionary of dictionary of string: string): metrics names and descriptions.
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forwarding_rules_dict (dictionary of string: int): Keys are the network links and values are the number of Forwarding Rules per network.
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limit_dict (dictionary of string:int): Dictionary with the network link as key and the limit as value.
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layer (string): the Layer to get Forwarding rules (L4/L7)
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Returns:
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None
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'''
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for project in config["monitored_projects"]:
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network_dict = networks.get_networks(config, project)
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current_quota_limit = limits.get_quota_current_limit(
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config, f"projects/{project}", config["limit_names"][layer])
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if current_quota_limit is None:
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print(
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f"Could not write {layer} forwarding rules to metric for projects/{project} due to missing quotas"
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)
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continue
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current_quota_limit_view = metrics.customize_quota_view(current_quota_limit)
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for net in network_dict:
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limits.set_limits(net, current_quota_limit_view, limit_dict)
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usage = 0
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if net['self_link'] in forwarding_rules_dict:
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usage = forwarding_rules_dict[net['self_link']]
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metrics.write_data_to_metric(
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config, project, usage, metrics_dict["metrics_per_network"]
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[f"{layer.lower()}_forwarding_rules_per_network"]["usage"]["name"],
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net['network_name'])
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metrics.write_data_to_metric(
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config, project, net['limit'], metrics_dict["metrics_per_network"]
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[f"{layer.lower()}_forwarding_rules_per_network"]["limit"]["name"],
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net['network_name'])
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metrics.write_data_to_metric(
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config, project, usage / net['limit'],
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metrics_dict["metrics_per_network"]
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[f"{layer.lower()}_forwarding_rules_per_network"]["utilization"]
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["name"], net['network_name'])
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print(
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f"Wrote number of {layer} forwarding rules to metric for projects/{project}"
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)
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#
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# Copyright 2022 Google 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 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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#
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from code import interact
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from collections import defaultdict
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from . import metrics, networks, limits
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def get_gce_instance_dict(config: dict):
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'''
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Calls the Asset Inventory API to get all GCE instances under the GCP organization.
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Parameters:
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config (dict): The dict containing config like clients and limits
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Returns:
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gce_instance_dict (dictionary of string: int): Keys are the network links and values are the number of GCE Instances per network.
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'''
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gce_instance_dict = defaultdict(int)
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response = config["clients"]["asset_client"].search_all_resources(
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request={
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"scope": f"organizations/{config['organization']}",
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"asset_types": ["compute.googleapis.com/Instance"],
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})
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for resource in response:
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for field_name, field_value in resource.additional_attributes.items():
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if field_name == "networkInterfaceNetworks":
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for network in field_value:
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if network in gce_instance_dict:
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gce_instance_dict[network] += 1
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else:
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gce_instance_dict[network] = 1
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return gce_instance_dict
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def get_gce_instances_data(config, metrics_dict, gce_instance_dict, limit_dict):
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'''
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Gets the data for GCE instances per VPC Network and writes it to the metric defined in instance_metric.
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Parameters:
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config (dict): The dict containing config like clients and limits
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metrics_dict (dictionary of dictionary of string: string): metrics names and descriptions
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gce_instance_dict (dictionary of string: int): Keys are the network links and values are the number of GCE Instances per network.
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limit_dict (dictionary of string:int): Dictionary with the network link as key and the limit as value
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Returns:
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gce_instance_dict
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'''
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for project in config["monitored_projects"]:
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network_dict = networks.get_networks(config, project)
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current_quota_limit = limits.get_quota_current_limit(
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config, f"projects/{project}", config["limit_names"]["GCE_INSTANCES"])
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if current_quota_limit is None:
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print(
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f"Could not write number of instances for projects/{project} due to missing quotas"
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)
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current_quota_limit_view = metrics.customize_quota_view(current_quota_limit)
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for net in network_dict:
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limits.set_limits(net, current_quota_limit_view, limit_dict)
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usage = 0
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if net['self_link'] in gce_instance_dict:
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usage = gce_instance_dict[net['self_link']]
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metrics.write_data_to_metric(
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config, project, usage, metrics_dict["metrics_per_network"]
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["instance_per_network"]["usage"]["name"], net['network_name'])
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metrics.write_data_to_metric(
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config, project, net['limit'], metrics_dict["metrics_per_network"]
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["instance_per_network"]["limit"]["name"], net['network_name'])
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metrics.write_data_to_metric(
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config, project, usage / net['limit'],
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metrics_dict["metrics_per_network"]["instance_per_network"]
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["utilization"]["name"], net['network_name'])
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print(f"Wrote number of instances to metric for projects/{project}")
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#
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# Copyright 2022 Google 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 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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#
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from google.api_core import exceptions
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from google.cloud import monitoring_v3
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from . import metrics
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def get_ppg(network_link, limit_dict):
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'''
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Checks if this network has a specific limit for a metric, if so, returns that limit, if not, returns the default limit.
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Parameters:
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network_link (string): VPC network link.
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limit_list (list of string): Used to get the limit per VPC or the default limit.
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Returns:
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limit_dict (dictionary of string:int): Dictionary with the network link as key and the limit as value
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'''
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if network_link in limit_dict:
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return limit_dict[network_link]
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else:
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if 'default_value' in limit_dict:
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return limit_dict['default_value']
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else:
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print(f"Error: limit not found for {network_link}")
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return 0
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def set_limits(network_dict, quota_limit, limit_dict):
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'''
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Updates the network dictionary with quota limit values.
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Parameters:
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network_dict (dictionary of string: string): Contains network information.
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quota_limit (list of dictionaries of string: string): Current quota limit.
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limit_dict (dictionary of string:int): Dictionary with the network link as key and the limit as value
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Returns:
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None
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'''
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network_dict['limit'] = None
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if quota_limit:
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for net in quota_limit:
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if net['network_id'] == network_dict['network_id']:
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network_dict['limit'] = net['value']
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return
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network_link = f"https://www.googleapis.com/compute/v1/projects/{network_dict['project_id']}/global/networks/{network_dict['network_name']}"
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if network_link in limit_dict:
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network_dict['limit'] = limit_dict[network_link]
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else:
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if 'default_value' in limit_dict:
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network_dict['limit'] = limit_dict['default_value']
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else:
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print(f"Error: Couldn't find limit for {network_link}")
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network_dict['limit'] = 0
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def get_quota_current_limit(config, project_link, metric_name):
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'''
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Retrieves limit for a specific metric.
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Parameters:
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project_link (string): Project link.
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metric_name (string): Name of the metric.
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Returns:
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results_list (list of string): Current limit.
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'''
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try:
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results = config["clients"]["monitoring_client"].list_time_series(
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request={
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"name": project_link,
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"filter": f'metric.type = "{metric_name}"',
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"interval": config["monitoring_interval"],
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"view": monitoring_v3.ListTimeSeriesRequest.TimeSeriesView.FULL
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})
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results_list = list(results)
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return results_list
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except exceptions.PermissionDenied as err:
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print(
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f"Warning: error reading quotas for {project_link}. " +
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f"This can happen if you don't have permissions on the project, for example if the project is in another organization or a Google managed project"
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)
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return None
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def count_effective_limit(config, project_id, network_dict, usage_metric_name,
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limit_metric_name, utilization_metric_name,
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limit_dict):
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'''
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Calculates the effective limits (using algorithm in the link below) for peering groups and writes data (usage, limit, utilization) to the custom metrics.
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Source: https://cloud.google.com/vpc/docs/quota#vpc-peering-effective-limit
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Parameters:
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config (dict): The dict containing config like clients and limits
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project_id (string): Project ID for the project to be analyzed.
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network_dict (dictionary of string: string): Contains all required information about the network to get the usage, limit and utilization.
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usage_metric_name (string): Name of the custom metric to be populated for usage per VPC peering group.
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limit_metric_name (string): Name of the custom metric to be populated for limit per VPC peering group.
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utilization_metric_name (string): Name of the custom metric to be populated for utilization per VPC peering group.
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limit_dict (dictionary of string:int): Dictionary containing the limit per peering group (either VPC specific or default limit).
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Returns:
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None
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'''
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if network_dict['peerings'] == []:
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return
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# Get usage: Sums usage for current network + all peered networks
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peering_group_usage = network_dict['usage']
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for peered_network in network_dict['peerings']:
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if 'usage' not in peered_network:
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print(
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f"Can not add metrics for peered network in projects/{project_id} as no usage metrics exist due to missing permissions"
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)
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continue
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peering_group_usage += peered_network['usage']
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network_link = f"https://www.googleapis.com/compute/v1/projects/{project_id}/global/networks/{network_dict['network_name']}"
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# Calculates effective limit: Step 1: max(per network limit, per network_peering_group limit)
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limit_step1 = max(network_dict['limit'], get_ppg(network_link, limit_dict))
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# Calculates effective limit: Step 2: List of max(per network limit, per network_peering_group limit) for each peered network
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limit_step2 = []
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for peered_network in network_dict['peerings']:
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peered_network_link = f"https://www.googleapis.com/compute/v1/projects/{peered_network['project_id']}/global/networks/{peered_network['network_name']}"
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if 'limit' in peered_network:
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limit_step2.append(
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max(peered_network['limit'], get_ppg(peered_network_link,
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limit_dict)))
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else:
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print(
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f"Ignoring projects/{peered_network['project_id']} for limits in peering group of project {project_id} as no limits are available."
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+
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"This can happen if you don't have permissions on the project, for example if the project is in another organization or a Google managed project"
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)
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# Calculates effective limit: Step 3: Find minimum from the list created by Step 2
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limit_step3 = 0
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if len(limit_step2) > 0:
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limit_step3 = min(limit_step2)
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# Calculates effective limit: Step 4: Find maximum from step 1 and step 3
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effective_limit = max(limit_step1, limit_step3)
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utilization = peering_group_usage / effective_limit
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metrics.write_data_to_metric(config, project_id, peering_group_usage,
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usage_metric_name, network_dict['network_name'])
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metrics.write_data_to_metric(config, project_id, effective_limit,
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limit_metric_name, network_dict['network_name'])
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metrics.write_data_to_metric(config, project_id, utilization,
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utilization_metric_name,
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network_dict['network_name'])
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|
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@ -0,0 +1,238 @@
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#
|
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# Copyright 2022 Google LLC
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
#
|
||||
|
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import time
|
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import yaml
|
||||
from google.api import metric_pb2 as ga_metric
|
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from google.cloud import monitoring_v3
|
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from . import peerings, limits, networks
|
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|
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|
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def create_metrics(monitoring_project):
|
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'''
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Creates all Cloud Monitoring custom metrics based on the metric.yaml file
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|
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Parameters:
|
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monitoring_project (string): the project where the metrics are written to
|
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Returns:
|
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metrics_dict (dictionary of dictionary of string: string): metrics names and descriptions
|
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limits_dict (dictionary of dictionary of string: int): limits_dict[metric_name]: dict[network_name] = limit_value
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'''
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client = monitoring_v3.MetricServiceClient()
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existing_metrics = []
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for desc in client.list_metric_descriptors(name=monitoring_project):
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existing_metrics.append(desc.type)
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limits_dict = {}
|
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|
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with open("metrics.yaml", 'r') as stream:
|
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try:
|
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metrics_dict = yaml.safe_load(stream)
|
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|
||||
for metric_list in metrics_dict.values():
|
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for metric in metric_list.values():
|
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for sub_metric_key, sub_metric in metric.items():
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metric_link = f"custom.googleapis.com/{sub_metric['name']}"
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# If the metric doesn't exist yet, then we create it
|
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if metric_link not in existing_metrics:
|
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create_metric(sub_metric["name"], sub_metric["description"],
|
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monitoring_project)
|
||||
# Parse limits (both default values and network specific ones)
|
||||
if sub_metric_key == "limit":
|
||||
limits_dict_for_metric = {}
|
||||
for network_link, limit_value in sub_metric["values"].items():
|
||||
limits_dict_for_metric[network_link] = limit_value
|
||||
limits_dict[sub_metric["name"]] = limits_dict_for_metric
|
||||
|
||||
return metrics_dict, limits_dict
|
||||
except yaml.YAMLError as exc:
|
||||
print(exc)
|
||||
|
||||
|
||||
def create_metric(metric_name, description, monitoring_project):
|
||||
'''
|
||||
Creates a Cloud Monitoring metric based on the parameter given if the metric is not already existing
|
||||
|
||||
Parameters:
|
||||
metric_name (string): Name of the metric to be created
|
||||
description (string): Description of the metric to be created
|
||||
monitoring_project (string): the project where the metrics are written to
|
||||
Returns:
|
||||
None
|
||||
'''
|
||||
client = monitoring_v3.MetricServiceClient()
|
||||
|
||||
descriptor = ga_metric.MetricDescriptor()
|
||||
descriptor.type = f"custom.googleapis.com/{metric_name}"
|
||||
descriptor.metric_kind = ga_metric.MetricDescriptor.MetricKind.GAUGE
|
||||
descriptor.value_type = ga_metric.MetricDescriptor.ValueType.DOUBLE
|
||||
descriptor.description = description
|
||||
descriptor = client.create_metric_descriptor(name=monitoring_project,
|
||||
metric_descriptor=descriptor)
|
||||
print("Created {}.".format(descriptor.name))
|
||||
|
||||
|
||||
def write_data_to_metric(config, monitored_project_id, value, metric_name,
|
||||
network_name):
|
||||
'''
|
||||
Writes data to Cloud Monitoring custom metrics.
|
||||
|
||||
Parameters:
|
||||
config (dict): The dict containing config like clients and limits
|
||||
monitored_project_id: ID of the project where the resource lives (will be added as a label)
|
||||
value (int): Value for the data point of the metric.
|
||||
metric_name (string): Name of the metric
|
||||
network_name (string): Name of the network (will be added as a label)
|
||||
Returns:
|
||||
usage (int): Current usage for that network.
|
||||
limit (int): Current usage for that network.
|
||||
'''
|
||||
client = monitoring_v3.MetricServiceClient()
|
||||
|
||||
series = monitoring_v3.TimeSeries()
|
||||
series.metric.type = f"custom.googleapis.com/{metric_name}"
|
||||
series.resource.type = "global"
|
||||
series.metric.labels["network_name"] = network_name
|
||||
series.metric.labels["project"] = monitored_project_id
|
||||
|
||||
now = time.time()
|
||||
seconds = int(now)
|
||||
nanos = int((now - seconds) * 10**9)
|
||||
interval = monitoring_v3.TimeInterval(
|
||||
{"end_time": {
|
||||
"seconds": seconds,
|
||||
"nanos": nanos
|
||||
}})
|
||||
point = monitoring_v3.Point({
|
||||
"interval": interval,
|
||||
"value": {
|
||||
"double_value": value
|
||||
}
|
||||
})
|
||||
series.points = [point]
|
||||
|
||||
# TODO: sometimes this cashes with 'DeadlineExceeded: 504 Deadline expired before operation could complete' error
|
||||
# Implement exponential backoff retries?
|
||||
try:
|
||||
client.create_time_series(name=config["monitoring_project_link"],
|
||||
time_series=[series])
|
||||
except Exception as e:
|
||||
print(e)
|
||||
|
||||
|
||||
def get_pgg_data(config, metric_dict, usage_dict, limit_metric, limit_dict):
|
||||
'''
|
||||
This function gets the usage, limit and utilization per VPC peering group for a specific metric for all projects to be monitored.
|
||||
|
||||
Parameters:
|
||||
config (dict): The dict containing config like clients and limits
|
||||
metric_dict (dictionary of string: string): Dictionary with the metric names and description, that will be used to populate the metrics
|
||||
usage_dict (dictionnary of string:int): Dictionary with the network link as key and the number of resources as value
|
||||
limit_metric (string): Name of the existing GCP metric for limit per VPC network
|
||||
limit_dict (dictionary of string:int): Dictionary with the network link as key and the limit as value
|
||||
Returns:
|
||||
None
|
||||
'''
|
||||
for project in config["monitored_projects"]:
|
||||
network_dict_list = peerings.gather_peering_data(config, project)
|
||||
# Network dict list is a list of dictionary (one for each network)
|
||||
# For each network, this dictionary contains:
|
||||
# project_id, network_name, network_id, usage, limit, peerings (list of peered networks)
|
||||
# peerings is a list of dictionary (one for each peered network) and contains:
|
||||
# project_id, network_name, network_id
|
||||
current_quota_limit = limits.get_quota_current_limit(
|
||||
config, f"projects/{project}", limit_metric)
|
||||
if current_quota_limit is None:
|
||||
print(
|
||||
f"Could not write number of L7 forwarding rules to metric for projects/{project} due to missing quotas"
|
||||
)
|
||||
continue
|
||||
|
||||
current_quota_limit_view = customize_quota_view(current_quota_limit)
|
||||
|
||||
# For each network in this GCP project
|
||||
for network_dict in network_dict_list:
|
||||
if network_dict['network_id'] == 0:
|
||||
print(
|
||||
f"Could not write {metric_dict['usage']['name']} for peering group {network_dict['network_name']} in {project} due to missing permissions."
|
||||
)
|
||||
continue
|
||||
network_link = f"https://www.googleapis.com/compute/v1/projects/{project}/global/networks/{network_dict['network_name']}"
|
||||
|
||||
limit = networks.get_limit_network(network_dict, network_link,
|
||||
current_quota_limit_view, limit_dict)
|
||||
|
||||
usage = 0
|
||||
if network_link in usage_dict:
|
||||
usage = usage_dict[network_link]
|
||||
|
||||
# Here we add usage and limit to the network dictionary
|
||||
network_dict["usage"] = usage
|
||||
network_dict["limit"] = limit
|
||||
|
||||
# For every peered network, get usage and limits
|
||||
for peered_network_dict in network_dict['peerings']:
|
||||
peered_network_link = f"https://www.googleapis.com/compute/v1/projects/{peered_network_dict['project_id']}/global/networks/{peered_network_dict['network_name']}"
|
||||
peered_usage = 0
|
||||
if peered_network_link in usage_dict:
|
||||
peered_usage = usage_dict[peered_network_link]
|
||||
|
||||
current_peered_quota_limit = limits.get_quota_current_limit(
|
||||
config, f"projects/{peered_network_dict['project_id']}",
|
||||
limit_metric)
|
||||
if current_peered_quota_limit is None:
|
||||
print(
|
||||
f"Could not write metrics for peering to projects/{peered_network_dict['project_id']} due to missing quotas"
|
||||
)
|
||||
continue
|
||||
|
||||
peering_project_limit = customize_quota_view(current_peered_quota_limit)
|
||||
|
||||
peered_limit = networks.get_limit_network(peered_network_dict,
|
||||
peered_network_link,
|
||||
peering_project_limit,
|
||||
limit_dict)
|
||||
# Here we add usage and limit to the peered network dictionary
|
||||
peered_network_dict["usage"] = peered_usage
|
||||
peered_network_dict["limit"] = peered_limit
|
||||
|
||||
limits.count_effective_limit(config, project, network_dict,
|
||||
metric_dict["usage"]["name"],
|
||||
metric_dict["limit"]["name"],
|
||||
metric_dict["utilization"]["name"],
|
||||
limit_dict)
|
||||
print(
|
||||
f"Wrote {metric_dict['usage']['name']} for peering group {network_dict['network_name']} in {project}"
|
||||
)
|
||||
|
||||
|
||||
def customize_quota_view(quota_results):
|
||||
'''
|
||||
Customize the quota output for an easier parsable output.
|
||||
|
||||
Parameters:
|
||||
quota_results (string): Input from get_quota_current_usage or get_quota_current_limit. Contains the Current usage or limit for all networks in that project.
|
||||
Returns:
|
||||
quotaViewList (list of dictionaries of string: string): Current quota usage or limit.
|
||||
'''
|
||||
quotaViewList = []
|
||||
for result in quota_results:
|
||||
quotaViewJson = {}
|
||||
quotaViewJson.update(dict(result.resource.labels))
|
||||
quotaViewJson.update(dict(result.metric.labels))
|
||||
for val in result.points:
|
||||
quotaViewJson.update({'value': val.value.int64_value})
|
||||
quotaViewList.append(quotaViewJson)
|
||||
return quotaViewList
|
||||
|
|
@ -0,0 +1,159 @@
|
|||
#
|
||||
# Copyright 2022 Google LLC
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
#
|
||||
|
||||
from code import interact
|
||||
from collections import defaultdict
|
||||
from google.protobuf import field_mask_pb2
|
||||
from googleapiclient import errors
|
||||
import http
|
||||
|
||||
|
||||
def get_subnet_ranges_dict(config: dict):
|
||||
'''
|
||||
Calls the Asset Inventory API to get all Subnet ranges under the GCP organization.
|
||||
|
||||
Parameters:
|
||||
config (dict): The dict containing config like clients and limits
|
||||
Returns:
|
||||
subnet_range_dict (dictionary of string: int): Keys are the network links and values are the number of subnet ranges per network.
|
||||
'''
|
||||
|
||||
subnet_range_dict = defaultdict(int)
|
||||
read_mask = field_mask_pb2.FieldMask()
|
||||
read_mask.FromJsonString('name,versionedResources')
|
||||
|
||||
response = config["clients"]["asset_client"].search_all_resources(
|
||||
request={
|
||||
"scope": f"organizations/{config['organization']}",
|
||||
"asset_types": ["compute.googleapis.com/Subnetwork"],
|
||||
"read_mask": read_mask,
|
||||
})
|
||||
for resource in response:
|
||||
ranges = 0
|
||||
network_link = None
|
||||
|
||||
for versioned in resource.versioned_resources:
|
||||
for field_name, field_value in versioned.resource.items():
|
||||
if field_name == "network":
|
||||
network_link = field_value
|
||||
ranges += 1
|
||||
if field_name == "secondaryIpRanges":
|
||||
for range in field_value:
|
||||
ranges += 1
|
||||
|
||||
if network_link in subnet_range_dict:
|
||||
subnet_range_dict[network_link] += ranges
|
||||
else:
|
||||
subnet_range_dict[network_link] = ranges
|
||||
|
||||
return subnet_range_dict
|
||||
|
||||
|
||||
def get_networks(config, project_id):
|
||||
'''
|
||||
Returns a dictionary of all networks in a project.
|
||||
|
||||
Parameters:
|
||||
config (dict): The dict containing config like clients and limits
|
||||
project_id (string): Project ID for the project containing the networks.
|
||||
Returns:
|
||||
network_dict (dictionary of string: string): Contains the project_id, network_name(s) and network_id(s)
|
||||
'''
|
||||
request = config["clients"]["discovery_client"].networks().list(
|
||||
project=project_id)
|
||||
response = request.execute()
|
||||
network_dict = []
|
||||
if 'items' in response:
|
||||
for network in response['items']:
|
||||
network_name = network['name']
|
||||
network_id = network['id']
|
||||
self_link = network['selfLink']
|
||||
d = {
|
||||
'project_id': project_id,
|
||||
'network_name': network_name,
|
||||
'network_id': network_id,
|
||||
'self_link': self_link
|
||||
}
|
||||
network_dict.append(d)
|
||||
return network_dict
|
||||
|
||||
|
||||
def get_network_id(config, project_id, network_name):
|
||||
'''
|
||||
Returns the network_id for a specific project / network name.
|
||||
|
||||
Parameters:
|
||||
config (dict): The dict containing config like clients and limits
|
||||
project_id (string): Project ID for the project containing the networks.
|
||||
network_name (string): Name of the network
|
||||
Returns:
|
||||
network_id (int): Network ID.
|
||||
'''
|
||||
request = config["clients"]["discovery_client"].networks().list(
|
||||
project=project_id)
|
||||
try:
|
||||
response = request.execute()
|
||||
except errors.HttpError as err:
|
||||
# TODO: log proper warning
|
||||
if err.resp.status == http.HTTPStatus.FORBIDDEN:
|
||||
print(
|
||||
f"Warning: error reading networks for {project_id}. " +
|
||||
f"This can happen if you don't have permissions on the project, for example if the project is in another organization or a Google managed project"
|
||||
)
|
||||
else:
|
||||
print(f"Warning: error reading networks for {project_id}: {err}")
|
||||
return 0
|
||||
|
||||
network_id = 0
|
||||
|
||||
if 'items' in response:
|
||||
for network in response['items']:
|
||||
if network['name'] == network_name:
|
||||
network_id = network['id']
|
||||
break
|
||||
|
||||
if network_id == 0:
|
||||
print(f"Error: network_id not found for {network_name} in {project_id}")
|
||||
|
||||
return network_id
|
||||
|
||||
|
||||
def get_limit_network(network_dict, network_link, quota_limit, limit_dict):
|
||||
'''
|
||||
Returns limit for a specific network and metric, using the GCP quota metrics or the values in the yaml file if not found.
|
||||
|
||||
Parameters:
|
||||
network_dict (dictionary of string: string): Contains network information.
|
||||
network_link (string): Contains network link
|
||||
quota_limit (list of dictionaries of string: string): Current quota limit for all networks in that project.
|
||||
limit_dict (dictionary of string:int): Dictionary with the network link as key and the limit as value
|
||||
Returns:
|
||||
limit (int): Current limit for that network.
|
||||
'''
|
||||
if quota_limit:
|
||||
for net in quota_limit:
|
||||
if net['network_id'] == network_dict['network_id']:
|
||||
return net['value']
|
||||
|
||||
if network_link in limit_dict:
|
||||
return limit_dict[network_link]
|
||||
else:
|
||||
if 'default_value' in limit_dict:
|
||||
return limit_dict['default_value']
|
||||
else:
|
||||
print(f"Error: Couldn't find limit for {network_link}")
|
||||
|
||||
return 0
|
||||
|
|
@ -0,0 +1,164 @@
|
|||
#
|
||||
# Copyright 2022 Google LLC
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
#
|
||||
|
||||
from . import metrics, networks, limits
|
||||
|
||||
|
||||
def get_vpc_peering_data(config, metrics_dict, limit_dict):
|
||||
'''
|
||||
Gets the data for VPC peerings (active or not) and writes it to the metric defined (vpc_peering_active_metric and vpc_peering_metric).
|
||||
|
||||
Parameters:
|
||||
config (dict): The dict containing config like clients and limits
|
||||
metrics_dict (dictionary of dictionary of string: string): metrics names and descriptions
|
||||
limit_dict (dictionary of string:int): Dictionary with the network link as key and the limit as value
|
||||
Returns:
|
||||
None
|
||||
'''
|
||||
for project in config["monitored_projects"]:
|
||||
active_vpc_peerings, vpc_peerings = gather_vpc_peerings_data(
|
||||
config, project, limit_dict)
|
||||
for peering in active_vpc_peerings:
|
||||
metrics.write_data_to_metric(
|
||||
config, project, peering['active_peerings'],
|
||||
metrics_dict["metrics_per_network"]["vpc_peering_active_per_network"]
|
||||
["usage"]["name"], peering['network_name'])
|
||||
metrics.write_data_to_metric(
|
||||
config, project, peering['network_limit'],
|
||||
metrics_dict["metrics_per_network"]["vpc_peering_active_per_network"]
|
||||
["limit"]["name"], peering['network_name'])
|
||||
metrics.write_data_to_metric(
|
||||
config, project,
|
||||
peering['active_peerings'] / peering['network_limit'],
|
||||
metrics_dict["metrics_per_network"]["vpc_peering_active_per_network"]
|
||||
["utilization"]["name"], peering['network_name'])
|
||||
print("Wrote number of active VPC peerings to custom metric for project:",
|
||||
project)
|
||||
|
||||
for peering in vpc_peerings:
|
||||
metrics.write_data_to_metric(
|
||||
config, project, peering['peerings'],
|
||||
metrics_dict["metrics_per_network"]["vpc_peering_per_network"]
|
||||
["usage"]["name"], peering['network_name'])
|
||||
metrics.write_data_to_metric(
|
||||
config, project, peering['network_limit'],
|
||||
metrics_dict["metrics_per_network"]["vpc_peering_per_network"]
|
||||
["limit"]["name"], peering['network_name'])
|
||||
metrics.write_data_to_metric(
|
||||
config, project, peering['peerings'] / peering['network_limit'],
|
||||
metrics_dict["metrics_per_network"]["vpc_peering_per_network"]
|
||||
["utilization"]["name"], peering['network_name'])
|
||||
print("Wrote number of VPC peerings to custom metric for project:", project)
|
||||
|
||||
|
||||
def gather_peering_data(config, project_id):
|
||||
'''
|
||||
Returns a dictionary of all peerings for all networks in a project.
|
||||
|
||||
Parameters:
|
||||
config (dict): The dict containing config like clients and limits
|
||||
project_id (string): Project ID for the project containing the networks.
|
||||
Returns:
|
||||
network_list (dictionary of string: string): Contains the project_id, network_name(s) and network_id(s) of peered networks.
|
||||
'''
|
||||
request = config["clients"]["discovery_client"].networks().list(
|
||||
project=project_id)
|
||||
response = request.execute()
|
||||
|
||||
network_list = []
|
||||
if 'items' in response:
|
||||
for network in response['items']:
|
||||
net = {
|
||||
'project_id': project_id,
|
||||
'network_name': network['name'],
|
||||
'network_id': network['id'],
|
||||
'peerings': []
|
||||
}
|
||||
if 'peerings' in network:
|
||||
STATE = network['peerings'][0]['state']
|
||||
if STATE == "ACTIVE":
|
||||
for peered_network in network[
|
||||
'peerings']: # "projects/{project_name}/global/networks/{network_name}"
|
||||
start = peered_network['network'].find("projects/") + len(
|
||||
'projects/')
|
||||
end = peered_network['network'].find("/global")
|
||||
peered_project = peered_network['network'][start:end]
|
||||
peered_network_name = peered_network['network'].split(
|
||||
"networks/")[1]
|
||||
peered_net = {
|
||||
'project_id':
|
||||
peered_project,
|
||||
'network_name':
|
||||
peered_network_name,
|
||||
'network_id':
|
||||
networks.get_network_id(config, peered_project,
|
||||
peered_network_name)
|
||||
}
|
||||
net["peerings"].append(peered_net)
|
||||
network_list.append(net)
|
||||
return network_list
|
||||
|
||||
|
||||
def gather_vpc_peerings_data(config, project_id, limit_dict):
|
||||
'''
|
||||
Gets the data for all VPC peerings (active or not) in project_id and writes it to the metric defined in vpc_peering_active_metric and vpc_peering_metric.
|
||||
|
||||
Parameters:
|
||||
config (dict): The dict containing config like clients and limits
|
||||
project_id (string): We will take all VPCs in that project_id and look for all peerings to these VPCs.
|
||||
limit_dict (dictionary of string:int): Dictionary with the network link as key and the limit as value
|
||||
Returns:
|
||||
active_peerings_dict (dictionary of string: string): Contains project_id, network_name, network_limit for each active VPC peering.
|
||||
peerings_dict (dictionary of string: string): Contains project_id, network_name, network_limit for each VPC peering.
|
||||
'''
|
||||
active_peerings_dict = []
|
||||
peerings_dict = []
|
||||
request = config["clients"]["discovery_client"].networks().list(
|
||||
project=project_id)
|
||||
response = request.execute()
|
||||
if 'items' in response:
|
||||
for network in response['items']:
|
||||
if 'peerings' in network:
|
||||
STATE = network['peerings'][0]['state']
|
||||
if STATE == "ACTIVE":
|
||||
active_peerings_count = len(network['peerings'])
|
||||
else:
|
||||
active_peerings_count = 0
|
||||
|
||||
peerings_count = len(network['peerings'])
|
||||
else:
|
||||
peerings_count = 0
|
||||
active_peerings_count = 0
|
||||
|
||||
network_link = f"https://www.googleapis.com/compute/v1/projects/{project_id}/global/networks/{network['name']}"
|
||||
network_limit = limits.get_ppg(network_link, limit_dict)
|
||||
|
||||
active_d = {
|
||||
'project_id': project_id,
|
||||
'network_name': network['name'],
|
||||
'active_peerings': active_peerings_count,
|
||||
'network_limit': network_limit
|
||||
}
|
||||
active_peerings_dict.append(active_d)
|
||||
d = {
|
||||
'project_id': project_id,
|
||||
'network_name': network['name'],
|
||||
'peerings': peerings_count,
|
||||
'network_limit': network_limit
|
||||
}
|
||||
peerings_dict.append(d)
|
||||
|
||||
return active_peerings_dict, peerings_dict
|
||||
|
|
@ -0,0 +1,56 @@
|
|||
#
|
||||
# Copyright 2022 Google LLC
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
#
|
||||
|
||||
from google.protobuf import field_mask_pb2
|
||||
|
||||
|
||||
def get_routers(config):
|
||||
'''
|
||||
Returns a dictionary of all Cloud Routers in the GCP organization.
|
||||
|
||||
Parameters:
|
||||
config (dict): The dict containing config like clients and limits
|
||||
Returns:
|
||||
routers_dict (dictionary of string: list of string): Key is the network link and value is a list of router links.
|
||||
'''
|
||||
|
||||
read_mask = field_mask_pb2.FieldMask()
|
||||
read_mask.FromJsonString('name,versionedResources')
|
||||
|
||||
routers_dict = {}
|
||||
|
||||
response = config["clients"]["asset_client"].search_all_resources(
|
||||
request={
|
||||
"scope": f"organizations/{config['organization']}",
|
||||
"asset_types": ["compute.googleapis.com/Router"],
|
||||
"read_mask": read_mask,
|
||||
})
|
||||
for resource in response:
|
||||
network_link = None
|
||||
router_link = None
|
||||
for versioned in resource.versioned_resources:
|
||||
for field_name, field_value in versioned.resource.items():
|
||||
if field_name == "network":
|
||||
network_link = field_value
|
||||
if field_name == "selfLink":
|
||||
router_link = field_value
|
||||
|
||||
if network_link in routers_dict:
|
||||
routers_dict[network_link].append(router_link)
|
||||
else:
|
||||
routers_dict[network_link] = [router_link]
|
||||
|
||||
return routers_dict
|
||||
|
|
@ -0,0 +1,176 @@
|
|||
#
|
||||
# Copyright 2022 Google LLC
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
#
|
||||
|
||||
from collections import defaultdict
|
||||
from . import metrics, networks, limits, peerings, routers
|
||||
|
||||
|
||||
def get_routes_for_router(config, project_id, router_region, router_name):
|
||||
'''
|
||||
Returns the same of dynamic routes learned by a specific Cloud Router instance
|
||||
|
||||
Parameters:
|
||||
config (dict): The dict containing config like clients and limits
|
||||
project_id (string): Project ID for the project containing the Cloud Router.
|
||||
router_region (string): GCP region for the Cloud Router.
|
||||
router_name (string): Cloud Router name.
|
||||
Returns:
|
||||
sum_routes (int): Number of dynamic routes learned by the Cloud Router.
|
||||
'''
|
||||
request = config["clients"]["discovery_client"].routers().getRouterStatus(
|
||||
project=project_id, region=router_region, router=router_name)
|
||||
response = request.execute()
|
||||
|
||||
sum_routes = 0
|
||||
|
||||
if 'result' in response:
|
||||
if 'bgpPeerStatus' in response['result']:
|
||||
for peer in response['result']['bgpPeerStatus']:
|
||||
sum_routes += peer['numLearnedRoutes']
|
||||
|
||||
return sum_routes
|
||||
|
||||
|
||||
def get_routes_for_network(config, network_link, project_id, routers_dict):
|
||||
'''
|
||||
Returns a the number of dynamic routes for a given network
|
||||
|
||||
Parameters:
|
||||
config (dict): The dict containing config like clients and limits
|
||||
network_link (string): Network self link.
|
||||
project_id (string): Project ID containing the network.
|
||||
routers_dict (dictionary of string: list of string): Dictionary with key as network link and value as list of router links.
|
||||
Returns:
|
||||
sum_routes (int): Number of routes in that network.
|
||||
'''
|
||||
sum_routes = 0
|
||||
|
||||
if network_link in routers_dict:
|
||||
for router_link in routers_dict[network_link]:
|
||||
# Router link is using the following format:
|
||||
# 'https://www.googleapis.com/compute/v1/projects/PROJECT_ID/regions/REGION/routers/ROUTER_NAME'
|
||||
start = router_link.find("/regions/") + len("/regions/")
|
||||
end = router_link.find("/routers/")
|
||||
router_region = router_link[start:end]
|
||||
router_name = router_link.split('/routers/')[1]
|
||||
routes = get_routes_for_router(config, project_id, router_region,
|
||||
router_name)
|
||||
|
||||
sum_routes += routes
|
||||
|
||||
return sum_routes
|
||||
|
||||
|
||||
def get_dynamic_routes(config, metrics_dict, limits_dict):
|
||||
'''
|
||||
Writes all dynamic routes per VPC to custom metrics.
|
||||
|
||||
Parameters:
|
||||
config (dict): The dict containing config like clients and limits
|
||||
metrics_dict (dictionary of dictionary of string: string): metrics names and descriptions.
|
||||
limits_dict (dictionary of string: int): key is network link (or 'default_value') and value is the limit for that network
|
||||
Returns:
|
||||
dynamic_routes_dict (dictionary of string: int): key is network link and value is the number of dynamic routes for that network
|
||||
'''
|
||||
routers_dict = routers.get_routers(config)
|
||||
dynamic_routes_dict = defaultdict(int)
|
||||
|
||||
for project_id in config["monitored_projects"]:
|
||||
network_dict = networks.get_networks(config, project_id)
|
||||
|
||||
for network in network_dict:
|
||||
sum_routes = get_routes_for_network(config, network['self_link'],
|
||||
project_id, routers_dict)
|
||||
dynamic_routes_dict[network['self_link']] = sum_routes
|
||||
|
||||
if network['self_link'] in limits_dict:
|
||||
limit = limits_dict[network['self_link']]
|
||||
else:
|
||||
if 'default_value' in limits_dict:
|
||||
limit = limits_dict['default_value']
|
||||
else:
|
||||
print("Error: couldn't find limit for dynamic routes.")
|
||||
break
|
||||
|
||||
utilization = sum_routes / limit
|
||||
|
||||
metrics.write_data_to_metric(
|
||||
config, project_id, sum_routes, metrics_dict["metrics_per_network"]
|
||||
["dynamic_routes_per_network"]["usage"]["name"],
|
||||
network['network_name'])
|
||||
metrics.write_data_to_metric(
|
||||
config, project_id, limit, metrics_dict["metrics_per_network"]
|
||||
["dynamic_routes_per_network"]["limit"]["name"],
|
||||
network['network_name'])
|
||||
metrics.write_data_to_metric(
|
||||
config, project_id, utilization, metrics_dict["metrics_per_network"]
|
||||
["dynamic_routes_per_network"]["utilization"]["name"],
|
||||
network['network_name'])
|
||||
|
||||
print("Wrote metrics for dynamic routes for VPCs in project", project_id)
|
||||
|
||||
return dynamic_routes_dict
|
||||
|
||||
|
||||
def get_dynamic_routes_ppg(config, metric_dict, usage_dict, limit_dict):
|
||||
'''
|
||||
This function gets the usage, limit and utilization for the dynamic routes per VPC peering group.
|
||||
|
||||
Parameters:
|
||||
config (dict): The dict containing config like clients and limits
|
||||
metric_dict (dictionary of string: string): Dictionary with the metric names and description, that will be used to populate the metrics
|
||||
usage_dict (dictionnary of string:int): Dictionary with the network link as key and the number of resources as value
|
||||
limit_dict (dictionary of string:int): Dictionary with the network link as key and the limit as value
|
||||
Returns:
|
||||
None
|
||||
'''
|
||||
for project in config["monitored_projects"]:
|
||||
network_dict_list = peerings.gather_peering_data(config, project)
|
||||
|
||||
for network_dict in network_dict_list:
|
||||
network_link = f"https://www.googleapis.com/compute/v1/projects/{project}/global/networks/{network_dict['network_name']}"
|
||||
|
||||
limit = limits.get_ppg(network_link, limit_dict)
|
||||
|
||||
usage = 0
|
||||
if network_link in usage_dict:
|
||||
usage = usage_dict[network_link]
|
||||
|
||||
# Here we add usage and limit to the network dictionary
|
||||
network_dict["usage"] = usage
|
||||
network_dict["limit"] = limit
|
||||
|
||||
# For every peered network, get usage and limits
|
||||
for peered_network_dict in network_dict['peerings']:
|
||||
peered_network_link = f"https://www.googleapis.com/compute/v1/projects/{peered_network_dict['project_id']}/global/networks/{peered_network_dict['network_name']}"
|
||||
peered_usage = 0
|
||||
if peered_network_link in usage_dict:
|
||||
peered_usage = usage_dict[peered_network_link]
|
||||
|
||||
peered_limit = limits.get_ppg(peered_network_link, limit_dict)
|
||||
|
||||
# Here we add usage and limit to the peered network dictionary
|
||||
peered_network_dict["usage"] = peered_usage
|
||||
peered_network_dict["limit"] = peered_limit
|
||||
|
||||
limits.count_effective_limit(config, project, network_dict,
|
||||
metric_dict["usage"]["name"],
|
||||
metric_dict["limit"]["name"],
|
||||
metric_dict["utilization"]["name"],
|
||||
limit_dict)
|
||||
print(
|
||||
f"Wrote {metric_dict['usage']['name']} for peering group {network_dict['network_name']} in {project}"
|
||||
)
|
||||
Loading…
Reference in New Issue