47 lines
1.4 KiB
Python
47 lines
1.4 KiB
Python
import os
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from datetime import timedelta
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import pendulum
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import requests
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from airflow.decorators import dag
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from airflow.decorators import task
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from airflow.hooks.base import BaseHook
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from airflow.providers.amazon.aws.hooks.s3 import S3Hook
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S3_CONN_ID = os.getenv("S3_CONN_ID", "s3_conn")
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EXECUTION_TIMEOUT = int(os.getenv("EXECUTION_TIMEOUT", 6))
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default_args = {
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"execution_timeout": timedelta(hours=EXECUTION_TIMEOUT),
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"retries": int(os.getenv("DEFAULT_TASK_RETRIES", 1)),
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"retry_delay": timedelta(seconds=int(os.getenv("DEFAULT_RETRY_DELAY_SECONDS", 60))),
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}
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@dag(
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start_date=pendulum.datetime(2021, 1, 1, tz="UTC"),
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schedule=None,
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catchup=False,
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default_args=default_args,
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params={
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"file": "File to download",
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"dst_bucket": "bucket that will contain file"
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},
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tags=["s3"],
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)
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def openaire_to_s3():
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@task
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def download(**context):
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conn = BaseHook.get_connection("openaire_default")
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session = requests.Session()
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session.auth = (conn.login, conn.password)
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hook = S3Hook(S3_CONN_ID, transfer_config_args={'use_threads': False})
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with session.get("https://" + conn.host + "/data/graph/" + context["params"]["file"], stream=True) as r:
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r.raise_for_status()
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hook.load_file_obj(r.raw, "/data/graph/" + context["params"]["file"], bucket_name=context["params"]["dst_bucket"], replace=True, encrypt=False)
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download()
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openaire_to_s3()
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