def test_execute_wildcard_with_destination_object_retained_prefix(
self, mock_hook):
mock_hook.return_value.list.return_value = SOURCE_FILES_LIST
operator = GCSToGCSOperator(
task_id=TASK_ID,
source_bucket=TEST_BUCKET,
source_object=SOURCE_OBJECT_WILDCARD_FILENAME,
destination_bucket=DESTINATION_BUCKET,
destination_object='{}/{}'.format(
DESTINATION_OBJECT_PREFIX, SOURCE_OBJECT_WILDCARD_SUFFIX[:-1]),
)
operator.execute(None)
mock_calls_retained = [
mock.call(TEST_BUCKET, 'test_object/file1.txt', DESTINATION_BUCKET,
'foo/bar/test_object/file1.txt'),
mock.call(TEST_BUCKET, 'test_object/file2.txt', DESTINATION_BUCKET,
'foo/bar/test_object/file2.txt'),
]
mock_hook.return_value.rewrite.assert_has_calls(mock_calls_retained)
def test_executes_with_different_delimiter_and_destination_object(
self, mock_hook):
mock_hook.return_value.list.return_value = [
'test_object/file1.txt', 'test_object/file2.txt'
]
operator = GCSToGCSOperator(task_id=TASK_ID,
source_bucket=TEST_BUCKET,
source_objects=SOURCE_OBJECTS_LIST,
destination_bucket=DESTINATION_BUCKET,
destination_object=DESTINATION_OBJECT,
delimiter='.txt')
operator.execute(None)
mock_calls = [
mock.call(TEST_BUCKET, 'test_object/file1.txt', DESTINATION_BUCKET,
DESTINATION_OBJECT),
mock.call(TEST_BUCKET, 'test_object/file2.txt', DESTINATION_BUCKET,
DESTINATION_OBJECT),
]
mock_hook.return_value.rewrite.assert_has_calls(mock_calls)
def test_wc_with_last_modified_time_with_all_true_cond(self, mock_hook):
mock_hook.return_value.list.return_value = SOURCE_FILES_LIST
mock_hook.return_value.is_updated_after.side_effect = [
True, True, True
]
operator = GCSToGCSOperator(
task_id=TASK_ID,
source_bucket=TEST_BUCKET,
source_object=SOURCE_OBJECT_WILDCARD_FILENAME,
destination_bucket=DESTINATION_BUCKET,
last_modified_time=MOD_TIME_1)
operator.execute(None)
mock_calls_none = [
mock.call(TEST_BUCKET, 'test_object/file1.txt', DESTINATION_BUCKET,
'test_object/file1.txt'),
mock.call(TEST_BUCKET, 'test_object/file2.txt', DESTINATION_BUCKET,
'test_object/file2.txt'),
]
mock_hook.return_value.rewrite.assert_has_calls(mock_calls_none)
)
# [END howto_operator_gcs_object_create_acl_entry_task]
# [START howto_operator_gcs_download_file_task]
download_file = GCSToLocalFilesystemOperator(
task_id="download_file",
object_name=BUCKET_FILE_LOCATION,
bucket=BUCKET_1,
filename=PATH_TO_SAVED_FILE,
)
# [END howto_operator_gcs_download_file_task]
copy_file = GCSToGCSOperator(
task_id="copy_file",
source_bucket=BUCKET_1,
source_object=BUCKET_FILE_LOCATION,
destination_bucket=BUCKET_2,
destination_object=BUCKET_FILE_LOCATION,
)
delete_files = GCSDeleteObjectsOperator(
task_id="delete_files", bucket_name=BUCKET_1, objects=[BUCKET_FILE_LOCATION]
)
# [START howto_operator_gcs_delete_bucket]
delete_bucket_1 = GCSDeleteBucketOperator(task_id="delete_bucket_1", bucket_name=BUCKET_1)
delete_bucket_2 = GCSDeleteBucketOperator(task_id="delete_bucket_2", bucket_name=BUCKET_2)
# [END howto_operator_gcs_delete_bucket]
[create_bucket1, create_bucket2] >> list_buckets >> list_buckets_result
[create_bucket1, create_bucket2] >> upload_file
# [START howto_sync_from_subdir]
sync_from_subdirectory = GCSSynchronizeBucketsOperator(
task_id="sync_from_subdirectory",
source_bucket=BUCKET_1_SRC,
source_object="subdir/",
destination_bucket=BUCKET_1_DST,
)
# [END howto_sync_from_subdir]
# [START howto_operator_gcs_to_gcs_single_file]
copy_single_file = GCSToGCSOperator(
task_id="copy_single_gcs_file",
source_bucket=BUCKET_1_SRC,
source_object=OBJECT_1,
destination_bucket=
BUCKET_1_DST, # If not supplied the source_bucket value will be used
destination_object="backup_" +
OBJECT_1, # If not supplied the source_object value will be used
)
# [END howto_operator_gcs_to_gcs_single_file]
# [START howto_operator_gcs_to_gcs_wildcard]
copy_files_with_wildcard = GCSToGCSOperator(
task_id="copy_files_with_wildcard",
source_bucket=BUCKET_1_SRC,
source_object="data/*.txt",
destination_bucket=BUCKET_1_DST,
destination_object="backup/",
)
# [END howto_operator_gcs_to_gcs_wildcard]
"""
The airflow DAG to backup Zarr
Note that this docstring must contain the strings "airflow" and "DAG" for
Airflow to properly detect it as a DAG
See: http://bit.ly/307VMum
See here for documentation on GCS Airflow Operators:
https://airflow.apache.org/docs/apache-airflow-providers-google/stable/_modules/airflow/providers/google/cloud/example_dags/example_gcs_to_gcs.html
"""
import os
from airflow import models
from airflow.providers.google.cloud.operators.gcs import GCSSynchronizeBucketsOperator
from airflow.providers.google.cloud.transfers.gcs_to_gcs import GCSToGCSOperator
from airflow.utils.dates import days_ago
# Zarr directory
BUCKET_1_SRC = (
"solar-pv-nowcasting-data/satellite/EUMETSAT/SEVIRI_RSS/OSGB36/all_zarr_int16"
)
copy_files_with_wildcard = GCSToGCSOperator(
task_id="copy_files_with_wildcard",
source_bucket=BUCKET_1_SRC,
source_object="data/*.txt",
destination_bucket=BUCKET_1_DST,
destination_object="backup/",
)
from __future__ import print_function
from airflow import models
from datetime import datetime
from airflow.providers.google.cloud.transfers.gcs_to_gcs import GCSToGCSOperator
default_dag_args = {
'start_date': datetime(2021, 3, 18),
'owner': 'File transfer GCS to GCS'
}
with models.DAG(
'file_transfer_gcs_to_gcs',
schedule_interval=None,
default_args=default_dag_args) as dag:
copy_single_file = GCSToGCSOperator(
task_id='copy_single_file',
source_bucket='southamerica-east1-poc-airf-904b2db6-bucket',
source_objects=['dags/airflow_monitoring.py'],
destination_bucket='trigger-bucket-poc',
destination_object='copied_file/airflow_monitoring.py',
)
