Source code for tests.system.microsoft.azure.example_s3_to_wasb
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from __future__ import annotations
from datetime import datetime
from airflow import DAG
from airflow.models.baseoperator import chain
from airflow.providers.amazon.aws.operators.s3 import (
S3CreateBucketOperator,
S3CreateObjectOperator,
S3DeleteBucketOperator,
S3DeleteObjectsOperator,
)
from airflow.providers.microsoft.azure.transfers.s3_to_wasb import S3ToAzureBlobStorageOperator
from airflow.utils.trigger_rule import TriggerRule
from providers.tests.system.amazon.aws.utils import SystemTestContextBuilder
[docs]sys_test_context_task = SystemTestContextBuilder().build()
# Set constants
[docs]DAG_ID: str = "example_s3_to_wasb"
[docs]S3_KEY: str = "TEST/TEST1.csv"
[docs]BLOB_PREFIX: str = "TEST"
[docs]BLOB_NAME: str = "TEST/TEST1.csv"
with DAG(dag_id=DAG_ID, start_date=datetime(2024, 1, 1), schedule="@once", catchup=False) as dag:
# Pull the task context, as well as the ENV_ID
[docs] test_context = sys_test_context_task()
env_id = test_context["ENV_ID"]
# Create the bucket name and container name using the ENV_ID
s3_bucket_name: str = f"{env_id}-s3-bucket"
wasb_container_name: str = f"{env_id}-wasb-container"
# Create an S3 bucket as part of testing set up, which will be removed by the remove_s3_bucket during
# teardown
create_s3_bucket = S3CreateBucketOperator(task_id="create_s3_bucket", bucket_name=s3_bucket_name)
# Add a file to the S3 bucket created above. Part of testing set up, this file will eventually be removed
# by the remove_s3_object task during teardown
create_s3_object = S3CreateObjectOperator(
task_id="create_s3_object",
s3_bucket=s3_bucket_name,
s3_key=S3_KEY,
data=b"Testing...",
replace=True,
encrypt=False,
)
# [START howto_transfer_s3_to_wasb]
s3_to_wasb = S3ToAzureBlobStorageOperator(
task_id="s3_to_wasb",
s3_bucket=s3_bucket_name,
container_name=wasb_container_name,
s3_key=S3_KEY,
blob_prefix=BLOB_PREFIX, # Using a prefix for this
trigger_rule=TriggerRule.ALL_DONE,
replace=True,
)
# [END howto_transfer_s3_to_wasb]
# Part of tear down, remove all the objects at the S3_PREFIX
remove_s3_object = S3DeleteObjectsOperator(
task_id="remove_s3_object", bucket=s3_bucket_name, prefix=S3_PREFIX, trigger_rule=TriggerRule.ALL_DONE
)
# Remove the S3 bucket created as part of setup
remove_s3_bucket = S3DeleteBucketOperator(
task_id="remove_s3_bucket",
bucket_name=s3_bucket_name, # Force delete?
trigger_rule=TriggerRule.ALL_DONE,
)
# Set dependencies
chain(
# TEST SETUP
test_context,
create_s3_bucket,
create_s3_object,
# TEST BODY
s3_to_wasb,
# TEST TEARDOWN
remove_s3_object,
remove_s3_bucket,
)
from 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 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)