建立、修補及刪除政策
本頁提供程式碼範例，說明如何建立、修補及刪除政策。
事前準備
請務必完成「設定 Policy API」程序。
常見公用程式
本頁的建立、修補及刪除指令碼會重複使用下列匯入、常數和輔助函式程式碼片段。
from collections.abc import Mapping, Sequence
import json
import pprint
from typing import Any, Optional
import urllib.error
import urllib.request
from absl import app
from absl import flags
import google.auth
from google.auth import iam
from google.auth.transport import requests
from google.oauth2 import service_account
AUTH_SCOPES = ['https://www.googleapis.com/auth/iam']
POLICY_SCOPES = ['https://www.googleapis.com/auth/cloud-identity.policies']
BASE_URL = 'https://cloudidentity.googleapis.com/'
VERSIONED_BASE_URL = f'{BASE_URL}v1/'
TOKEN_URI = 'https://accounts.google.com/o/oauth2/token'
_ADMIN_EMAIL = flags.DEFINE_string(
name='admin_email',
default=None,
help='Administrator email to call as',
required=True,
)
_POLICY_NAME = flags.DEFINE_string(
name='policy_name',
default=None,
help='The resource name of the policy, e.g., policies/12345',
required=True,
)
def create_delegated_credentials(
admin_email: str
) -> google.auth.credentials.Credentials:
"""Creates delegated credentials for the user.
Args:
admin_email: The administrator email to call as.
Returns:
The delegated credentials for the user.
"""
# Fetch application default credentials (ADC)
credentials, _ = google.auth.default(scopes=AUTH_SCOPES)
# Populate account information
request = requests.Request()
credentials.refresh(request)
# Create an IAM signer
signer = iam.Signer(request, credentials,
credentials.service_account_email)
# Create domain-wide delegated (DWD) credentials
delegated_credentials = service_account.Credentials(
signer=signer,
service_account_email=credentials.service_account_email,
token_uri=TOKEN_URI,
scopes=POLICY_SCOPES,
subject=admin_email
)
return delegated_credentials
def print_json_response(response: Mapping[str, Any]) -> None:
pp = pprint.PrettyPrinter(indent=4)
pp.pprint(response)
def get_access_token(admin_email: str) -> str:
"""Creates delegated credentials and returns an access token.
Args:
admin_email: The administrator email to call as.
Returns:
The access token.
"""
dc = create_delegated_credentials(admin_email)
dc.refresh(requests.Request())
if dc.token is None:
raise ValueError(
'Failed to refresh credentials and obtain an access token.'
)
return dc.token
def execute_request(request: urllib.request.Request, message: str) -> Optional[Mapping[str, Any]]:
"""Executes a request and prints the response.
Args:
request: The request to execute.
message: The message to print before the response.
Returns:
Policy API response or None in case of exception.
"""
try:
with urllib.request.urlopen(request) as response:
content = response.read()
op = json.loads(content)
print(message)
print_json_response(op)
return op
except urllib.error.HTTPError as e:
print(f'HTTPError: {e.code} {e.reason}')
print(e.read().decode('utf-8'))
建立政策
以下範例說明如何使用 Python 在機構中建立政策。這個範例具體說明如何建立資料保護規則和資料保護偵測工具。
"""Script to interact with the Cloud Identity Policies API.
This script lets you create delegated credentials, build, and
send requests to the Create Policy API. It includes a sample for creating a Data
Protection rule and detector.
"""
def build_create_policy_request(
access_token: str,
policy_payload: Mapping[str, Any]
) -> urllib.request.Request:
"""Builds the request for the Create Policy API.
Args:
access_token: The access token for the API.
policy_payload: The dictionary representing the policy to create.
Returns:
The request for the Create Policy API.
"""
create_url = f'{VERSIONED_BASE_URL}policies'
data = json.dumps(policy_payload).encode('utf-8')
request = urllib.request.Request(create_url, data=data, method='POST')
request.add_header('Authorization', 'Bearer ' + access_token)
request.add_header('Content-Type', 'application/json')
return request
def call_create_policy_endpoint(
access_token: str, policy_payload: Mapping[str, Any]
) -> Optional[Mapping[str, Any]]:
"""Calls the Create Policy API.
Args:
access_token: The access token for the API.
policy_payload: The policy payload to create.
Returns:
The response from the Create Policy API, or None if the request failed.
"""
request = build_create_policy_request(access_token, policy_payload)
execute_request(request, 'Create Policy operation started:')
def main(argv: Sequence[str]):
if len(argv) > 1:
raise app.UsageError('Too many command-line arguments.')
access_token = get_access_token(_ADMIN_EMAIL.value)
# Holistic sample for creating drive_action rule.
dlp_rule_payload = {
'customer': 'customers/<customer_id>',
'policyQuery': {
'orgUnit': 'orgUnits/<org_unit_id>',
},
'setting': {
'type': 'settings/rule.dlp',
'value': {
'displayName': 'sample rule creation',
'state': 'ACTIVE',
'triggers': ['google.workspace.drive.file.v1.share'],
'condition': {
'contentCondition': 'all_content.matches_dlp_detector(\'US_SOCIAL_SECURITY_NUMBER\', google.privacy.dlp.v2.Likelihood.LIKELY, {minimum_match_count: 1, minimum_unique_match_count: 1})'
},
'action': {
'driveAction': {
'warnUser': {},
},
},
},
},
}
# Holistic sample for creating wordList detector
dlp_detector_payload = {
'customer': 'customers/<customer_id>',
'policyQuery': {
'orgUnit': 'orgUnits/<org_unit_id>',
},
'setting': {
'type': 'settings/detector.word_list',
'value': {
'displayName': 'Project Sensitive Terms',
'description': (
'Detector for project-specific confidential keywords.'
),
'wordList': {
'words': [
'confidential',
'internal-only',
'top-secret',
'project-x',
]
},
},
},
}
rule_response = call_create_policy_endpoint(access_token, dlp_rule_payload)
detector_response = call_create_policy_endpoint(access_token, dlp_detector_payload)
if __name__ == '__main__':
app.run(main)
修補政策
以下範例說明如何使用 Python 修補機構中的政策。這個範例具體說明如何更新資料保護規則，將字詞清單偵測工具新增為條件。
"""Script to interact with the Cloud Identity Policies API.
This script provides functionality to patch a policy, build, and
send requests to the Patch Policy API. It includes a sample for updating a Data
Protection rule.
"""
from collections.abc import Mapping, Sequence
import json
import pprint
from typing import Any
import urllib.error
import urllib.request
from absl import app
from absl import flags
import google.auth
from google.auth import iam
from google.auth.transport import requests
from google.oauth2 import service_account
AUTH_SCOPES = ['https://www.googleapis.com/auth/iam']
POLICY_SCOPES = ['https://www.googleapis.com/auth/cloud-identity.policies']
BASE_URL = 'https://cloudidentity.googleapis.com/'
VERSIONED_BASE_URL = f'{BASE_URL}v1/'
TOKEN_URI = 'https://accounts.google.com/o/oauth2/token'
_ADMIN_EMAIL = flags.DEFINE_string(
name='admin_email',
default=None,
help='Administrator email to call as',
required=True,
)
_POLICY_NAME = flags.DEFINE_string(
name='policy_name',
default=None,
help='The resource name of the policy to patch, e.g., policies/12345',
required=True,
)
def create_delegated_credentials(
admin_email: str
) -> google.auth.credentials.Credentials:
"""Creates delegated credentials for the user.
Args:
admin_email: The administrator email to call as.
Returns:
The delegated credentials for the user.
"""
# Fetch application default credentials (ADC)
credentials, _ = google.auth.default(scopes=AUTH_SCOPES)
# Populate account information
request = requests.Request()
credentials.refresh(request)
# Create an IAM signer
signer = iam.Signer(request, credentials,
credentials.service_account_email)
# Create domain-wide delegated (DWD) credentials
delegated_credentials = service_account.Credentials(
signer=signer,
service_account_email=credentials.service_account_email,
token_uri=TOKEN_URI,
scopes=POLICY_SCOPES,
subject=admin_email
)
return delegated_credentials
def build_patch_policy_request(
access_token: str,
policy_name: str,
policy_payload: Mapping[str, Any]
) -> urllib.request.Request:
"""Builds the request for the Patch Policy API.
Args:
access_token: The access token for the API.
policy_name: The resource name of the policy to patch.
policy_payload: The dictionary representing the policy fields to patch.
Returns:
The request for the Patch Policy API.
"""
patch_url = f'{VERSIONED_BASE_URL}{policy_name}'
data = json.dumps(policy_payload).encode('utf-8')
request = urllib.request.Request(patch_url, data=data, method='PATCH')
request.add_header('Authorization', 'Bearer ' + access_token)
request.add_header('Content-Type', 'application/json')
return request
def call_patch_policy_endpoint(
access_token: str,
policy_name: str,
policy_payload: Mapping[str, Any]
) -> None:
"""Calls the Patch Policy API.
Args:
access_token: The access token for the API.
policy_name: The policy name to patch.
policy_payload: The policy payload for patch.
"""
request = build_patch_policy_request(
access_token, policy_name, policy_payload
)
execute_request(request, 'Patch Policy operation started:')
def main(argv: Sequence[str]):
if len(argv) > 2:
raise app.UsageError('Too many command-line arguments.')
access_token = get_access_token(_ADMIN_EMAIL.value)
# Sample for patching a rule policy to add a condition for a word list
# detector. Replace <detector_response.name> with the name of a detector
# policy created in the previous script.
patch_policy_payload = {
'policyQuery': {
'orgUnit': 'orgUnits/<org_unit_id>'
},
'setting': {
'type': 'settings/rule.dlp',
'value': {
'displayName': 'Warn users for sharing of custom sensitive data',
'description': 'Rule triggered by custom word list detector',
'triggers': [
'google.workspace.drive.file.v1.share'
],
'condition': {
'contentCondition': (
'all_content.matches_word_list(\'<detector_response.name>\')'
)
},
'action': {
'driveAction': {
'warnUser': {}
}
},
'state': 'ACTIVE'
}
}
}
call_patch_policy_endpoint(
access_token, _POLICY_NAME.value, patch_policy_payload
)
if __name__ == '__main__':
app.run(main)
刪除政策
以下範例說明如何使用 Python 刪除機構中的政策。
"""Script to interact with the Cloud Identity Policies API.
This script lets you delete a policy, build, and
send requests to the Delete Policy API.
"""
def build_delete_policy_request(
access_token: str,
policy_name: str
) -> urllib.request.Request:
"""Builds the request for the Delete Policy API.
Args:
access_token: The access token for the API.
policy_name: The resource name of the policy to delete.
Returns:
The request for the Delete Policy API.
"""
delete_url = f"{VERSIONED_BASE_URL}{policy_name}"
request = urllib.request.Request(delete_url, method="DELETE")
request.add_header("Authorization", "Bearer " + access_token)
return request
def call_delete_policy_api(
access_token: str,
policy_name: str
) -> None:
"""Calls the Delete Policy API.
Args:
access_token: The access token for the API.
policy_name: The policy name to delete.
"""
request = build_delete_policy_request(
access_token, policy_name
)
execute_request(request, 'Delete Policy operation started:')
def main(argv: Sequence[str]):
if len(argv) > 2:
raise app.UsageError('Too many command-line arguments.')
access_token = get_access_token(_ADMIN_EMAIL.value)
call_delete_policy_api(
access_token, _POLICY_NAME.value
)
if __name__ == '__main__':
app.run(main)
配額
每個 Google Cloud 專案的 Cloud Identity Policy API 每秒支援一次查詢 (QPS)。即使客戶建立多個 Google Cloud 專案，Cloud Identity Policy API 仍只支援每個客戶總共一個 QPS。
不支援提高配額。