Source code for tests.system.amazon.aws.example_datasync

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from __future__ import annotations

from datetime import datetime

import boto3

from airflow.decorators import task
from airflow.models.baseoperator import chain
from airflow.models.dag import DAG
from airflow.providers.amazon.aws.operators.datasync import DataSyncOperator
from airflow.providers.amazon.aws.operators.s3 import S3CreateBucketOperator, S3DeleteBucketOperator
from airflow.utils.trigger_rule import TriggerRule

from providers.tests.system.amazon.aws.utils import ENV_ID_KEY, SystemTestContextBuilder

[docs]DAG_ID = "example_datasync"
# Externally fetched variables:
[docs]ROLE_ARN_KEY = "ROLE_ARN"
[docs]sys_test_context_task = SystemTestContextBuilder().add_variable(ROLE_ARN_KEY).build()
[docs]def get_s3_bucket_arn(bucket_name): return f"arn:aws:s3:::{bucket_name}"
[docs]def create_location(bucket_name, role_arn): client = boto3.client("datasync") response = client.create_location_s3( Subdirectory="test", S3BucketArn=get_s3_bucket_arn(bucket_name), S3Config={ "BucketAccessRoleArn": role_arn, }, ) return response["LocationArn"]
@task
[docs]def create_source_location(bucket_source, role_arn): return create_location(bucket_source, role_arn)
@task
[docs]def create_destination_location(bucket_destination, role_arn): return create_location(bucket_destination, role_arn)
@task
[docs]def create_task(**kwargs): client = boto3.client("datasync") response = client.create_task( SourceLocationArn=kwargs["ti"].xcom_pull("create_source_location"), DestinationLocationArn=kwargs["ti"].xcom_pull("create_destination_location"), ) return response["TaskArn"]
@task(trigger_rule=TriggerRule.ALL_DONE)
[docs]def delete_task(task_arn): client = boto3.client("datasync") client.delete_task( TaskArn=task_arn, )
@task(trigger_rule=TriggerRule.ALL_DONE)
[docs]def delete_task_created_by_operator(**kwargs): client = boto3.client("datasync") client.delete_task( TaskArn=kwargs["ti"].xcom_pull("create_and_execute_task")["TaskArn"], )
@task(trigger_rule=TriggerRule.ALL_DONE)
[docs]def list_locations(bucket_source, bucket_destination): client = boto3.client("datasync") return client.list_locations( Filters=[ { "Name": "LocationUri", "Values": [ f"s3://{bucket_source}/test/", f"s3://{bucket_destination}/test/", f"s3://{bucket_source}/test_create/", f"s3://{bucket_destination}/test_create/", ], "Operator": "In", } ] )
@task(trigger_rule=TriggerRule.ALL_DONE)
[docs]def delete_locations(locations): client = boto3.client("datasync") for location in locations["Locations"]: client.delete_location( LocationArn=location["LocationArn"], )
with DAG( DAG_ID, schedule="@once", start_date=datetime(2021, 1, 1), catchup=False, tags=["example"], ) as dag:
[docs] test_context = sys_test_context_task()
s3_bucket_source: str = f"{test_context[ENV_ID_KEY]}-datasync-bucket-source" s3_bucket_destination: str = f"{test_context[ENV_ID_KEY]}-datasync-bucket-destination" create_s3_bucket_source = S3CreateBucketOperator( task_id="create_s3_bucket_source", bucket_name=s3_bucket_source ) create_s3_bucket_destination = S3CreateBucketOperator( task_id="create_s3_bucket_destination", bucket_name=s3_bucket_destination ) source_location = create_source_location(s3_bucket_source, test_context[ROLE_ARN_KEY]) destination_location = create_destination_location(s3_bucket_destination, test_context[ROLE_ARN_KEY]) created_task_arn = create_task() # [START howto_operator_datasync_specific_task] # Execute a specific task execute_task_by_arn = DataSyncOperator( task_id="execute_task_by_arn", task_arn=created_task_arn, ) # [END howto_operator_datasync_specific_task] # DataSyncOperator waits by default, setting as False to test the Sensor below. execute_task_by_arn.wait_for_completion = False # [START howto_operator_datasync_search_task] # Search and execute a task execute_task_by_locations = DataSyncOperator( task_id="execute_task_by_locations", source_location_uri=f"s3://{s3_bucket_source}/test", destination_location_uri=f"s3://{s3_bucket_destination}/test", # Only transfer files from /test/subdir folder task_execution_kwargs={ "Includes": [{"FilterType": "SIMPLE_PATTERN", "Value": "/test/subdir"}], }, ) # [END howto_operator_datasync_search_task] # DataSyncOperator waits by default, setting as False to test the Sensor below. execute_task_by_locations.wait_for_completion = False # [START howto_operator_datasync_create_task] # Create a task (the task does not exist) create_and_execute_task = DataSyncOperator( task_id="create_and_execute_task", source_location_uri=f"s3://{s3_bucket_source}/test_create", destination_location_uri=f"s3://{s3_bucket_destination}/test_create", create_task_kwargs={"Name": "Created by Airflow"}, create_source_location_kwargs={ "Subdirectory": "test_create", "S3BucketArn": get_s3_bucket_arn(s3_bucket_source), "S3Config": { "BucketAccessRoleArn": test_context[ROLE_ARN_KEY], }, }, create_destination_location_kwargs={ "Subdirectory": "test_create", "S3BucketArn": get_s3_bucket_arn(s3_bucket_destination), "S3Config": { "BucketAccessRoleArn": test_context[ROLE_ARN_KEY], }, }, delete_task_after_execution=False, ) # [END howto_operator_datasync_create_task] # DataSyncOperator waits by default, setting as False to test the Sensor below. create_and_execute_task.wait_for_completion = False locations_task = list_locations(s3_bucket_source, s3_bucket_destination) delete_locations_task = delete_locations(locations_task) delete_s3_bucket_source = S3DeleteBucketOperator( task_id="delete_s3_bucket_source", bucket_name=s3_bucket_source, force_delete=True, trigger_rule=TriggerRule.ALL_DONE, ) delete_s3_bucket_destination = S3DeleteBucketOperator( task_id="delete_s3_bucket_destination", bucket_name=s3_bucket_destination, force_delete=True, trigger_rule=TriggerRule.ALL_DONE, ) chain( # TEST SETUP test_context, create_s3_bucket_source, create_s3_bucket_destination, source_location, destination_location, created_task_arn, # TEST BODY execute_task_by_arn, execute_task_by_locations, create_and_execute_task, # TEST TEARDOWN delete_task(created_task_arn), delete_task_created_by_operator(), locations_task, delete_locations_task, delete_s3_bucket_source, delete_s3_bucket_destination, ) from dev.tests_common.test_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 dev.tests_common.test_utils.system_tests import get_test_run # noqa: E402 # Needed to run the example DAG with pytest (see: tests/system/README.md#run_via_pytest)
[docs]test_run = get_test_run(dag)

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