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

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from datetime import datetime

import boto3

from airflow import models
from airflow.decorators import task
from airflow.models.baseoperator import chain
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 tests.system.providers.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 models.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, wait_for_completion=False, ) # [END howto_operator_datasync_specific_task] # [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'}], }, wait_for_completion=False, ) # [END howto_operator_datasync_search_task] # [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, wait_for_completion=False, ) # [END howto_operator_datasync_create_task] 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 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/README.md#run_via_pytest)
[docs]test_run = get_test_run(dag)

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