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from __future__ import annotations

import os
from datetime import datetime

from airflow.decorators import task
from airflow.models.baseoperator import chain
from airflow.models.dag import DAG
from import S3CreateBucketOperator, S3DeleteBucketOperator
from import LocalFilesystemToS3Operator
from airflow.utils.trigger_rule import TriggerRule
from import SystemTestContextBuilder

[docs]sys_test_context_task = SystemTestContextBuilder().build()
[docs]DAG_ID = "example_local_to_s3"
[docs]TEMP_FILE_PATH = "/tmp/sample-txt.txt"
[docs]SAMPLE_TEXT = "This is some sample text."
[docs]def create_temp_file(): file = open(TEMP_FILE_PATH, "w") file.write(SAMPLE_TEXT)
[docs]def delete_temp_file(): if os.path.exists(TEMP_FILE_PATH): os.remove(TEMP_FILE_PATH)
with DAG( dag_id=DAG_ID, schedule="@once", start_date=datetime(2021, 1, 1), # Override to match your needs tags=["example"], catchup=False, ) as dag:
[docs] test_context = sys_test_context_task()
env_id = test_context["ENV_ID"] s3_bucket_name = f"{env_id}-bucket" s3_key = f"{env_id}/files/my-temp-file.txt" create_s3_bucket = S3CreateBucketOperator(task_id="create-s3-bucket", bucket_name=s3_bucket_name) # [START howto_transfer_local_to_s3] create_local_to_s3_job = LocalFilesystemToS3Operator( task_id="create_local_to_s3_job", filename=TEMP_FILE_PATH, dest_key=s3_key, dest_bucket=s3_bucket_name, replace=True, ) # [END howto_transfer_local_to_s3] delete_s3_bucket = S3DeleteBucketOperator( task_id="delete_s3_bucket", bucket_name=s3_bucket_name, force_delete=True, trigger_rule=TriggerRule.ALL_DONE, ) chain( # TEST SETUP test_context, create_temp_file(), create_s3_bucket, # TEST BODY create_local_to_s3_job, # TEST TEARDOWN delete_s3_bucket, delete_temp_file(), ) 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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