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[AIRFLOW-3346] Add hook and operator for GCP transfer service.
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# -*- coding: utf-8 -*- | ||
# | ||
# Licensed to the Apache Software Foundation (ASF) under one | ||
# or more contributor license agreements. See the NOTICE file | ||
# distributed with this work for additional information | ||
# regarding copyright ownership. The ASF licenses this file | ||
# to you 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 json | ||
import time | ||
import datetime | ||
from googleapiclient.discovery import build | ||
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from airflow.exceptions import AirflowException | ||
from airflow.contrib.hooks.gcp_api_base_hook import GoogleCloudBaseHook | ||
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# Time to sleep between active checks of the operation results | ||
TIME_TO_SLEEP_IN_SECONDS = 1 | ||
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# noinspection PyAbstractClass | ||
class GCPTransferServiceHook(GoogleCloudBaseHook): | ||
""" | ||
Hook for GCP Storage Transfer Service. | ||
""" | ||
_conn = None | ||
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def __init__(self, | ||
api_version='v1', | ||
gcp_conn_id='google_cloud_default', | ||
delegate_to=None): | ||
super(GCPTransferServiceHook, self).__init__(gcp_conn_id, delegate_to) | ||
self.api_version = api_version | ||
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def get_conn(self): | ||
""" | ||
Retrieves connection to Google Storage Transfer service. | ||
:return: Google Storage Transfer service object | ||
:rtype: dict | ||
""" | ||
if not self._conn: | ||
http_authorized = self._authorize() | ||
self._conn = build('storagetransfer', self.api_version, | ||
http=http_authorized, cache_discovery=False) | ||
return self._conn | ||
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def create_transfer_job(self, project_id, transfer_spec, **kwargs): | ||
conn = self.get_conn() | ||
now = datetime.datetime.utcnow() | ||
transfer_job = { | ||
'status': 'ENABLED', | ||
'projectId': project_id, | ||
'transferSpec': transfer_spec, | ||
'schedule': { | ||
'scheduleStartDate': { | ||
'day': now.day, | ||
'month': now.month, | ||
'year': now.year, | ||
}, | ||
'scheduleEndDate': { | ||
'day': now.day, | ||
'month': now.month, | ||
'year': now.year, | ||
} | ||
} | ||
} | ||
transfer_job.update(kwargs) | ||
result = conn.transferJobs().create(body=transfer_job).execute() | ||
self.wait_for_transfer_job(result, conn=conn) | ||
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def wait_for_transfer_job(self, job, conn=None): | ||
conn = conn or self.get_conn() | ||
while True: | ||
result = conn.transferOperations().list( | ||
name='transferOperations', | ||
filter=json.dumps({ | ||
'project_id': job['projectId'], | ||
'job_names': [job['name']], | ||
}), | ||
).execute() | ||
if self._check_operations_result(result): | ||
return True | ||
time.sleep(TIME_TO_SLEEP_IN_SECONDS) | ||
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def _check_operations_result(self, result): | ||
operations = result.get('operations', []) | ||
if len(operations) == 0: | ||
return False | ||
for operation in operations: | ||
if operation['metadata']['status'] in {'FAILED', 'ABORTED'}: | ||
raise AirflowException('Operation {} {}'.format( | ||
operation['name'], operation['metadata']['status'])) | ||
if operation['metadata']['status'] != 'SUCCESS': | ||
return False | ||
return True |
124 changes: 124 additions & 0 deletions
124
airflow/contrib/operators/s3_to_gcs_transfer_operator.py
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# -*- coding: utf-8 -*- | ||
# | ||
# Licensed to the Apache Software Foundation (ASF) under one | ||
# or more contributor license agreements. See the NOTICE file | ||
# distributed with this work for additional information | ||
# regarding copyright ownership. The ASF licenses this file | ||
# to you 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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from airflow.models import BaseOperator | ||
from airflow.hooks.S3_hook import S3Hook | ||
from airflow.contrib.hooks.gcp_transfer_hook import GCPTransferServiceHook | ||
from airflow.utils.decorators import apply_defaults | ||
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class S3ToGoogleCloudStorageTransferOperator(BaseOperator): | ||
""" | ||
Synchronizes an S3 bucket with a Google Cloud Storage bucket using the | ||
GCP Storage Transfer Service. | ||
:param s3_bucket: The S3 bucket where to find the objects. (templated) | ||
:type s3_bucket: str | ||
:param gcs_bucket: The destination Google Cloud Storage bucket | ||
where you want to store the files. (templated) | ||
:type gcs_bucket: str | ||
:param project_id: The ID of the Google Cloud Platform Console project that | ||
owns the job | ||
:type project_id: str | ||
:param aws_conn_id: The source S3 connection | ||
:type aws_conn_id: str | ||
:param gcp_conn_id: The destination connection ID to use | ||
when connecting to Google Cloud Storage. | ||
:type gcp_conn_id: str | ||
:param delegate_to: The account to impersonate, if any. | ||
For this to work, the service account making the request must have | ||
domain-wide delegation enabled. | ||
:type delegate_to: str | ||
:param object_conditions: Transfer service object conditions; see | ||
https://cloud.google.com/storage-transfer/docs/reference/rest/v1/TransferSpec | ||
:type object_conditions: dict | ||
:param transfer_options: Transfer service transfer options; see | ||
https://cloud.google.com/storage-transfer/docs/reference/rest/v1/TransferSpec | ||
:type transfer_options: dict | ||
:param job_kwargs: Additional transfer job options; see | ||
https://cloud.google.com/storage-transfer/docs/reference/rest/v1/transferJobs | ||
:type job_kwargs: dict | ||
**Example**: | ||
.. code-block:: python | ||
s3_to_gcs_transfer_op = S3ToGoogleCloudStorageTransferOperator( | ||
task_id='s3_to_gcs_transfer_example', | ||
s3_bucket='my-s3-bucket', | ||
project_id='my-gcp-project', | ||
gcs_bucket='my-gcs-bucket', | ||
dag=my_dag) | ||
""" | ||
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template_fields = ('s3_bucket', 'gcs_bucket') | ||
ui_color = '#e09411' | ||
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@apply_defaults | ||
def __init__(self, | ||
s3_bucket, | ||
gcs_bucket, | ||
project_id, | ||
aws_conn_id='aws_default', | ||
gcp_conn_id='google_cloud_default', | ||
delegate_to=None, | ||
object_conditions=None, | ||
transfer_options=None, | ||
job_kwargs=None, | ||
*args, | ||
**kwargs): | ||
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super(S3ToGoogleCloudStorageTransferOperator, self).__init__( | ||
*args, | ||
**kwargs) | ||
self.s3_bucket = s3_bucket | ||
self.gcs_bucket = gcs_bucket | ||
self.project_id = project_id | ||
self.aws_conn_id = aws_conn_id | ||
self.gcp_conn_id = gcp_conn_id | ||
self.delegate_to = delegate_to | ||
self.object_conditions = object_conditions or {} | ||
self.transfer_options = transfer_options or {} | ||
self.job_kwargs = job_kwargs or {} | ||
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def execute(self, context): | ||
transfer_hook = GCPTransferServiceHook( | ||
gcp_conn_id=self.gcp_conn_id, | ||
delegate_to=self.delegate_to) | ||
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s3_creds = S3Hook(aws_conn_id=self.aws_conn_id).get_credentials() | ||
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transfer_hook.create_transfer_job( | ||
project_id=self.project_id, | ||
transfer_spec={ | ||
'awsS3DataSource': { | ||
'bucketName': self.s3_bucket, | ||
'awsAccessKey': { | ||
'accessKeyId': s3_creds.access_key, | ||
'secretAccessKey': s3_creds.secret_key, | ||
} | ||
}, | ||
'gcsDataSink': { | ||
'bucketName': self.gcs_bucket, | ||
}, | ||
'objectConditions': self.object_conditions, | ||
'transferOptions': self.transfer_options, | ||
}, | ||
**self.job_kwargs | ||
) |
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Original file line number | Diff line number | Diff line change |
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# -*- coding: utf-8 -*- | ||
# | ||
# Licensed to the Apache Software Foundation (ASF) under one | ||
# or more contributor license agreements. See the NOTICE file | ||
# distributed with this work for additional information | ||
# regarding copyright ownership. The ASF licenses this file | ||
# to you 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. | ||
# | ||
import json | ||
import datetime | ||
import unittest | ||
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from airflow.exceptions import AirflowException | ||
from airflow.contrib.hooks.gcp_transfer_hook import GCPTransferServiceHook | ||
from airflow.contrib.hooks.gcp_transfer_hook import TIME_TO_SLEEP_IN_SECONDS | ||
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try: | ||
from unittest import mock | ||
except ImportError: | ||
try: | ||
import mock | ||
except ImportError: | ||
mock = None | ||
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class TestGCPTransferServiceHook(unittest.TestCase): | ||
def setUp(self): | ||
with mock.patch.object(GCPTransferServiceHook, '__init__', return_value=None): | ||
self.conn = mock.Mock() | ||
self.transfer_hook = GCPTransferServiceHook() | ||
self.transfer_hook._conn = self.conn | ||
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@mock.patch('airflow.contrib.hooks.gcp_transfer_hook.GCPTransferServiceHook.wait_for_transfer_job') | ||
def test_create_transfer_job(self, mock_wait): | ||
mock_create = self.conn.transferJobs.return_value.create | ||
mock_execute = mock_create.return_value.execute | ||
mock_execute.return_value = { | ||
'projectId': 'test-project', | ||
'name': 'transferJobs/test-job', | ||
} | ||
now = datetime.datetime.utcnow() | ||
transfer_spec = { | ||
'awsS3DataSource': {'bucketName': 'test-s3-bucket'}, | ||
'gcsDataSink': {'bucketName': 'test-gcs-bucket'} | ||
} | ||
self.transfer_hook.create_transfer_job('test-project', transfer_spec) | ||
mock_create.assert_called_once_with(body={ | ||
'status': 'ENABLED', | ||
'projectId': 'test-project', | ||
'transferSpec': transfer_spec, | ||
'schedule': { | ||
'scheduleStartDate': { | ||
'day': now.day, | ||
'month': now.month, | ||
'year': now.year, | ||
}, | ||
'scheduleEndDate': { | ||
'day': now.day, | ||
'month': now.month, | ||
'year': now.year, | ||
} | ||
} | ||
}) | ||
mock_wait.assert_called_once_with(mock_execute.return_value, conn=self.conn) | ||
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@mock.patch('time.sleep') | ||
def test_wait_for_transfer_job(self, mock_sleep): | ||
mock_list = self.conn.transferOperations.return_value.list | ||
mock_execute = mock_list.return_value.execute | ||
mock_execute.side_effect = [ | ||
{'operations': [{'metadata': {'status': 'IN_PROGRESS'}}]}, | ||
{'operations': [{'metadata': {'status': 'SUCCESS'}}]}, | ||
] | ||
self.transfer_hook.wait_for_transfer_job({ | ||
'projectId': 'test-project', | ||
'name': 'transferJobs/test-job', | ||
}) | ||
self.assertTrue(mock_list.called) | ||
list_args, list_kwargs = mock_list.call_args_list[0] | ||
self.assertEqual(list_kwargs.get('name'), 'transferOperations') | ||
self.assertEqual( | ||
json.loads(list_kwargs.get('filter')), | ||
{ | ||
'project_id': 'test-project', | ||
'job_names': ['transferJobs/test-job'] | ||
}, | ||
) | ||
mock_sleep.assert_called_once_with(TIME_TO_SLEEP_IN_SECONDS) | ||
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def test_wait_for_transfer_job_failed(self): | ||
mock_list = self.conn.transferOperations.return_value.list | ||
mock_execute = mock_list.return_value.execute | ||
mock_execute.side_effect = [ | ||
{'operations': [{'name': 'test-job', 'metadata': {'status': 'FAILED'}}]}, | ||
] | ||
with self.assertRaises(AirflowException): | ||
self.transfer_hook.wait_for_transfer_job({ | ||
'projectId': 'test-project', | ||
'name': 'transferJobs/test-job', | ||
}) |
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