Source code for tests.system.amazon.aws.example_local_to_s3

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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 airflow.providers.amazon.aws.operators.s3 import S3CreateBucketOperator, S3DeleteBucketOperator
from airflow.providers.amazon.aws.transfers.local_to_s3 import LocalFilesystemToS3Operator
from airflow.utils.trigger_rule import TriggerRule

from providers.tests.system.amazon.aws.utils 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."



@task

[docs]def create_temp_file():
    file = open(TEMP_FILE_PATH, "w")
    file.write(SAMPLE_TEXT)



@task(trigger_rule=TriggerRule.ALL_DONE)

[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 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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