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feat(core): daily backup for datawarehouse bdd #315

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feat(core): daily backup for datawarehouse bdd #315

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5 changes: 5 additions & 0 deletions docker-compose.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,11 @@ x-airflow-common:
AIRFLOW_VAR_MES_AIDES_AIRTABLE_KEY: ${AIRFLOW_VAR_MES_AIDES_AIRTABLE_KEY}
AIRFLOW_VAR_SOLIGUIDE_API_TOKEN: ${AIRFLOW_VAR_SOLIGUIDE_API_TOKEN}
AIRFLOW_VAR_TWOCAPTCHA_API_KEY: ${AIRFLOW_VAR_TWOCAPTCHA_API_KEY}
AIRFLOW_VAR_DATAWAREHOUSE_DI_HOST: target-db
AIRFLOW_VAR_DATAWAREHOUSE_DI_USERNAME: data-inclusion
AIRFLOW_VAR_DATAWAREHOUSE_DI_DATABASE: data-inclusion
AIRFLOW_VAR_DATAWAREHOUSE_DI_PASSWORD: data-inclusion
AIRFLOW_VAR_DATAWAREHOUSE_BUCKET_NAME: data-inclusion-lake

volumes:
- ./pipeline/dbt:/opt/airflow/dbt
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54 changes: 54 additions & 0 deletions pipeline/dags/backup_datawarehouse.py
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@@ -0,0 +1,54 @@
from datetime import timedelta

from airflow import DAG
from airflow.models import Variable
from airflow.operators import empty
from airflow.operators.bash import BashOperator
from airflow.providers.amazon.aws.transfers.local_to_s3 import (
LocalFilesystemToS3Operator,
)
from airflow.utils.dates import days_ago

default_args = {
"owner": "airflow",
"depends_on_past": False,
"email_on_failure": False,
"email_on_retry": False,
"retries": 1,
"retry_delay": timedelta(seconds=5),
}

with DAG(
"backup_datawarehouse_to_s3",
default_args=default_args,
description="Backup PostgreSQL datawarehouse and upload to S3",
schedule_interval="0 2 * * *",
start_date=days_ago(1),
catchup=False,
):
start = empty.EmptyOperator(task_id="start")
end = empty.EmptyOperator(task_id="end")
backup_postgres = BashOperator(
task_id="backup_postgres",
bash_command=f"""
pg_dump -h {Variable.get('DATAWAREHOUSE_DI_HOST')} \
-U {Variable.get('DATAWAREHOUSE_DI_USER')} \
-d {Variable.get('DATAWAREHOUSE_DI_DATABASE')} -F c -f /tmp/backup.dump
""",
env={"PGPASSWORD": f"{Variable.get('DATAWAREHOUSE_DI_PASSWORD')}"},
)
logical_date = "{{ ds }}"
upload_to_s3 = LocalFilesystemToS3Operator(
task_id="upload_to_s3",
filename="/tmp/backup.dump",
dest_key=f"S3://{Variable.get('DATAWAREHOUSE_BUCKET_NAME')}/data/backups/datawarehouse/backup_{logical_date}.dump",
aws_conn_id="s3",
replace=True,
)

clean_up = BashOperator(
task_id="cleanup",
bash_command="rm /tmp/backup.dump",
)

(start >> backup_postgres >> upload_to_s3 >> clean_up >> end)
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