Source code for tests.system.providers.samba.example_gcs_to_samba

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Example Airflow DAG for Google Cloud Storage to Samba transfer operators.

from __future__ import annotations

import os
from datetime import datetime
from pathlib import Path

from airflow import models
from import GCSCreateBucketOperator, GCSDeleteBucketOperator
from import LocalFilesystemToGCSOperator
from airflow.providers.samba.transfers.gcs_to_samba import GCSToSambaOperator
from airflow.utils.trigger_rule import TriggerRule

[docs]ENV_ID = os.environ.get("SYSTEM_TESTS_ENV_ID")
[docs]PROJECT_ID = os.environ.get("SYSTEM_TESTS_GCP_PROJECT")
[docs]DAG_ID = "gcs_to_smb"
[docs]SMB_CONN = "samba_default"
[docs]BUCKET_NAME = f"bucket_{DAG_ID}_{ENV_ID}"
[docs]DESTINATION_PATH_1 = "tmp/single-file/"
[docs]DESTINATION_PATH_2 = "tmp/dest-dir-1/"
[docs]DESTINATION_PATH_3 = "tmp/dest-dir-2/"
FILE_NAME = GCS_SRC_FILE = "empty.txt"
[docs]UPLOAD_SRC = str(Path(__file__).parent / "resources" / FILE_NAME)
[docs]GCS_SRC_FILE_IN_DIR = f"dir-1/{FILE_NAME}"
[docs]GCS_SRC_DIR = "dir-2/*.txt"
[docs]UPLOAD_IN_DIR_DST = f"dir-2/{FILE_NAME}"
with models.DAG( DAG_ID, schedule="@once", start_date=datetime(2021, 1, 1), catchup=False, tags=["example", "gcs", "smb"], ) as dag:
[docs] create_bucket = GCSCreateBucketOperator( task_id="create_bucket", bucket_name=BUCKET_NAME, project_id=PROJECT_ID )
upload_file_1 = LocalFilesystemToGCSOperator( task_id="upload_file_1", src=UPLOAD_SRC, dst=FILE_NAME, bucket=BUCKET_NAME, ) upload_file_2 = LocalFilesystemToGCSOperator( task_id="upload_file_2", src=UPLOAD_SRC, dst=GCS_SRC_FILE_IN_DIR, bucket=BUCKET_NAME, ) upload_file_3 = LocalFilesystemToGCSOperator( task_id="upload_file_3", src=UPLOAD_SRC, dst=UPLOAD_IN_DIR_DST, bucket=BUCKET_NAME, ) # [START howto_operator_gcs_to_samba_copy_single_file] copy_file_from_gcs_to_samba = GCSToSambaOperator( task_id="file-copy-gcs-to-samba", samba_conn_id=SMB_CONN, source_bucket=BUCKET_NAME, source_object=GCS_SRC_FILE, destination_path=DESTINATION_PATH_1, ) # [END howto_operator_gcs_to_samba_copy_single_file] # [START howto_operator_gcs_to_samba_move_single_file_destination] move_file_from_gcs_to_samba = GCSToSambaOperator( task_id="file-move-gcs-to-samba", samba_conn_id=SMB_CONN, source_bucket=BUCKET_NAME, source_object=GCS_SRC_FILE_IN_DIR, destination_path=DESTINATION_PATH_1, move_object=True, ) # [END howto_operator_gcs_to_samba_move_single_file_destination] # [START howto_operator_gcs_to_samba_copy_directory] copy_dir_from_gcs_to_samba = GCSToSambaOperator( task_id="dir-copy-gcs-to-samba", samba_conn_id=SMB_CONN, source_bucket=BUCKET_NAME, source_object=GCS_SRC_DIR, destination_path=DESTINATION_PATH_2, ) # [END howto_operator_gcs_to_samba_copy_directory] # [START howto_operator_gcs_to_samba_move_specific_files] move_dir_from_gcs_to_samba = GCSToSambaOperator( task_id="dir-move-gcs-to-samba", samba_conn_id=SMB_CONN, source_bucket=BUCKET_NAME, source_object=GCS_SRC_DIR, destination_path=DESTINATION_PATH_3, keep_directory_structure=False, ) # [END howto_operator_gcs_to_samba_move_specific_files] delete_bucket = GCSDeleteBucketOperator( task_id="delete_bucket", bucket_name=BUCKET_NAME, trigger_rule=TriggerRule.ALL_DONE ) ( # TEST SETUP create_bucket >> (upload_file_1, upload_file_2, upload_file_3) # TEST BODY >> copy_file_from_gcs_to_samba >> move_file_from_gcs_to_samba >> copy_dir_from_gcs_to_samba >> move_dir_from_gcs_to_samba # TEST TEARDOWN >> delete_bucket ) from tests.system.utils.watcher import watcher # This test needs watcher in order to properly mark success/failure # when "tearDown" task with trigger rule is part of the DAG list(dag.tasks) >> watcher() from tests.system.utils import get_test_run # noqa: E402 # Needed to run the example DAG with pytest (see: tests/system/
[docs]test_run = get_test_run(dag)

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