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hunfabric/tools/build_service_agents.py

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#!/usr/bin/env python3
# Copyright 2026 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
#
# https://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.
#
# /// script
# requires-python = ">=3.11"
# dependencies = [
# "BeautifulSoup4",
# "click",
# "requests",
# "pyyaml",
# ]
# ///
from collections import Counter
from dataclasses import asdict, dataclass
from itertools import chain
import click
import json
import requests
import yaml
from bs4 import BeautifulSoup
# BASEDIR = pathlib.Path(__file__).resolve().parents[1]
SERVICE_AGENTS_URL = "https://cloud.google.com/iam/docs/service-agents"
# old names used by Fabric
ALIASES = {
'bigquery-encryption': ['bq'],
'cloudservices': ['cloudsvc'],
'compute-system': ['compute'],
'cloudcomposer-accounts': ['composer'],
'container-engine-robot': ['container', 'container-engine'],
'dataflow-service-producer-prod': ['dataflow'],
'dataproc-accounts': ['dataproc'],
'gae-api-prod': ['gae-flex'],
'gcf-admin-robot': ['cloudfunctions', 'gcf'],
'gkehub': ['fleet'],
'gs-project-accounts': ['storage'],
'monitoring-notification': ['monitoring'],
'serverless-robot-prod': ['cloudrun', 'run'],
}
IGNORED_AGENTS = []
# SKIP_IAM_AGENTS defines the GLOBAL/STATIC skip list.
# These service agents are known to be created lazily by GCP and will ALWAYS
# fail on API enablement if Fabric tries to grant default roles automatically.
# Running this script marks them with `skip_iam: true` in `service-agents.yaml`.
SKIP_IAM_AGENTS = [
'service-PROJECT_NUMBER@gcp-sa-apigateway-mgmt.iam.gserviceaccount.com',
'service-PROJECT_NUMBER@gcp-sa-apigateway.iam.gserviceaccount.com',
'service-PROJECT_NUMBER@gcp-sa-bigqueryspark.iam.gserviceaccount.com',
'service-PROJECT_NUMBER@gcp-sa-bigquerytardis.iam.gserviceaccount.com',
'service-PROJECT_NUMBER@gcp-sa-connectedsheets.iam.gserviceaccount.com',
'service-PROJECT_NUMBER@gcp-sa-firebase.iam.gserviceaccount.com',
'service-PROJECT_NUMBER@gcp-sa-krmapihosting-dataplane.iam.gserviceaccount.com',
'service-PROJECT_NUMBER@gcp-sa-krmapihosting.iam.gserviceaccount.com',
'service-PROJECT_NUMBER@gcp-sa-logging.iam.gserviceaccount.com',
'service-PROJECT_NUMBER@gcp-sa-networkactions.iam.gserviceaccount.com',
'service-PROJECT_NUMBER@gcp-sa-prod-bigqueryomni.iam.gserviceaccount.com',
'service-PROJECT_NUMBER@gcp-sa-scc-notification.iam.gserviceaccount.com',
'service-PROJECT_NUMBER@gcp-sa-securitycenter.iam.gserviceaccount.com',
'service-PROJECT_NUMBER@gcp-sa-ns-authz.iam.gserviceaccount.com',
'service-PROJECT_NUMBER@gcp-sa-agentgateway.iam.gserviceaccount.com',
]
AGENT_NAME_OVERRIDE = {
# special case for Cloud Build that has two service agents:
# - %s@cloudbuild.gserviceaccount.com
# - service-%s@gcp-sa-cloudbuild.iam.gserviceaccount.com
'PROJECT_NUMBER@cloudbuild.gserviceaccount.com': 'cloudbuild-sa',
}
E2E_SERVICES = [
"alloydb.googleapis.com",
"analyticshub.googleapis.com",
"apigee.googleapis.com",
"artifactregistry.googleapis.com",
"assuredworkloads.googleapis.com",
"bigquery.googleapis.com",
"cloudbuild.googleapis.com",
"cloudfunctions.googleapis.com",
"cloudkms.googleapis.com",
"cloudresourcemanager.googleapis.com",
"compute.googleapis.com",
"container.googleapis.com",
"dataform.googleapis.com",
"dataplex.googleapis.com",
"dataproc.googleapis.com",
"dns.googleapis.com",
"eventarc.googleapis.com",
"iam.googleapis.com",
"iap.googleapis.com",
"logging.googleapis.com",
"looker.googleapis.com",
"monitoring.googleapis.com",
"networkconnectivity.googleapis.com",
"pubsub.googleapis.com",
"run.googleapis.com",
"secretmanager.googleapis.com",
"servicenetworking.googleapis.com",
"serviceusage.googleapis.com",
"sqladmin.googleapis.com",
"stackdriver.googleapis.com",
"storage-component.googleapis.com",
"storage.googleapis.com",
"vpcaccess.googleapis.com",
]
PRIMARY_OVERRIDE = {
'storage-transfer-service': True,
}
@dataclass
class Agent:
name: str
display_name: str
api: str
identity: str
role: str
is_primary: bool
aliases: list[str]
skip_iam: bool
node_type: str
def to_dict(self):
d = asdict(self)
d.pop('node_type', None)
if self.node_type in ['organization', 'folder']:
d.pop('is_primary', None)
d.pop('role', None)
d.pop('skip_iam', None)
d.pop('aliases', None)
return d
@click.command()
@click.option('--e2e', is_flag=True, default=False)
@click.option('--organization', 'mode', flag_value='organization',
default=False, help='Extract organization-level service agents')
@click.option('--folder', 'mode', flag_value='folder', default=False,
help='Extract folder-level service agents')
@click.option('--project', 'mode', flag_value='project', default=False,
help='Extract project-level service agents')
def main(mode, e2e=False):
page = requests.get(SERVICE_AGENTS_URL).content
soup = BeautifulSoup(page, 'html.parser')
agents = []
for content in soup.find(id='service-agents').select('tbody tr'):
agent_text = content.get_text()
col1, col2 = content.find_all('td')
# Extract all identities from col1 (could be in a single <p> or multiple in a <ul>)
identities = []
if col1.find('ul'):
# Multiple identities in a list
for li in col1.find_all('li'):
identities.append(li.get_text().strip())
elif col1.find('p'):
# Single identity
identities.append(col1.p.get_text().strip())
# Filter identities based on mode and find the matching one
identity = None
for id_candidate in identities:
if mode == 'project' and 'PROJECT_NUMBER' in id_candidate:
identity = id_candidate
break
elif mode == 'organization' and 'ORGANIZATION_NUMBER' in id_candidate:
identity = id_candidate
break
elif mode == 'folder' and 'FOLDER_NUMBER' in id_candidate:
identity = id_candidate
break
# Skip if no matching identity found for this mode
if not identity:
continue
if identity in IGNORED_AGENTS or '-IDENTIFIER' in identity:
continue
role = col2.code.get_text() if 'roles/' in agent_text else None
# Ignore Apigee Core service agent as it shares email with primary agent
if identity == 'service-PROJECT_NUMBER@gcp-sa-apigee.iam.gserviceaccount.com' and role == 'roles/apigee.coreServiceAgent':
continue
if identity in AGENT_NAME_OVERRIDE:
name = AGENT_NAME_OVERRIDE[identity]
else:
# most service agents have the format
# service-PROJECT_NUMBER@gcp-sa-SERVICE_NAME.iam.gserviceaccount.com
# or service-ORGANIZATION_NUMBER@gcp-sa-SERVICE_NAME.iam.gserviceaccount.com
# or service-FOLDER_NUMBER@gcp-sa-SERVICE_NAME.iam.gserviceaccount.com
# We keep the SERVICE_NAME part as the agent's name
name = identity.split('@')[1].split('.')[0]
name = name.removeprefix('gcp-sa-')
skip_iam = identity in SKIP_IAM_AGENTS
# Replace identifiers based on mode
if mode == 'project':
identity = identity.replace('PROJECT_NUMBER', '${project_number}')
identity = identity.replace('.iam.gserviceaccount.',
'.${universe_domain}iam.gserviceaccount.')
elif mode == 'organization':
identity = identity.replace('ORGANIZATION_NUMBER',
'${organization_number}')
# Skip universe domain replacement for organization agents
elif mode == 'folder':
identity = identity.replace('FOLDER_NUMBER', '${folder_number}')
# Skip universe domain replacement for folder agents
if name == 'monitoring':
# monitoring is deprecated in favor of monitoring-notification.
# Switch names to preserve old Fabric convention
name = 'monitoring-deprecated'
is_primary = 'Primary service agent' in agent_text
agent = Agent(
name=name,
display_name=col1.h4.get_text(),
api=col1.span.code.get_text() if name != 'cloudservices' else None,
identity=identity,
role=col2.code.get_text() if 'roles/' in agent_text else None,
is_primary=PRIMARY_OVERRIDE.get(name, is_primary),
aliases=ALIASES.get(name, []),
skip_iam=skip_iam,
node_type=mode,
)
if mode == 'project' and agent.name == 'cloudservices':
# cloudservices role is granted automatically, we don't want to manage it
agent.role = None
agents.append(agent)
# make sure all names and aliases are different:
names = set(agent.name for agent in agents)
duplicate_names = [
name for name, count in Counter(agent.name for agent in agents).items()
if count > 1
]
assert len(names) == len(agents), f"duplicate names found: {duplicate_names}"
aliases = set(chain.from_iterable(agent.aliases for agent in agents))
assert aliases.isdisjoint(names)
# ensure there are no aliases for folders or organization service agents
# mode \in [O, F] => empty(aliases)
assert mode not in ['organization', 'folder'] or len(aliases) == 0
if not e2e:
# take the header from the first lines of this file
header = open(__file__).readlines()[2:15]
print("".join(header))
# and print all the agents
print(yaml.safe_dump([a.to_dict() for a in agents], sort_keys=False))
else:
jit_services = {}
result = {"locals": {"jit_services": jit_services}}
for a in agents:
if a.is_primary and a.api in E2E_SERVICES:
jit_services[a.api] = a.role
print(json.dumps(result, indent=2))
if __name__ == '__main__':
main()