contracts-earnings-fcc.py

# version Thu Jun  9 09:38:02 CST 2022
from datetime import datetime, timedelta
from textwrap import dedent
from pprint import pprint
from airflow import DAG
from airflow.providers.postgres.operators.postgres import PostgresOperator
from airflow.providers.postgres.hooks.postgres import PostgresHook
from airflow.operators.bash import BashOperator
from airflow.operators.python import PythonOperator
import psycopg2.extras
from lib.contracts_earnings_fcc import contract_earnings_fcc

from lib.planter_entity import planter_entity
from lib.sync_entity_stakeholder import sync_entity_stakeholder
from lib.utils import on_failure_callback

# These args will get passed on to each operator
# You can override them on a per-task basis during operator initialization
default_args = {
    'owner': 'airflow',
    'depends_on_past': False,
    'email': ['airflow@example.com'],
    'email_on_failure': False,
    'email_on_retry': False,
    'retries': 0,
    'retry_delay': timedelta(minutes=5),
    # 'queue': 'bash_queue',
    # 'pool': 'backfill',
    # 'priority_weight': 10,
    # 'end_date': datetime(2016, 1, 1),
    # 'wait_for_downstream': False,
    # 'dag': dag,
    # 'sla': timedelta(hours=2),
    # 'execution_timeout': timedelta(seconds=300),
    'on_failure_callback': on_failure_callback, # needs to be set in default_args to work correctly: https://github.com/apache/airflow/issues/26760
    # 'on_success_callback': some_other_function,
    # 'on_retry_callback': another_function,
    # 'sla_miss_callback': yet_another_function,
    # 'trigger_rule': 'all_success'
}
with DAG(
    'contract-earnings-fcc',
    default_args=default_args,
    description='Calculate earnings for FCC planters',
    schedule_interval= '@daily',
    start_date=datetime(2021, 1, 1),
    catchup=False,
    tags=['earnings', 'freetown'],
) as dag:

    t1 = BashOperator(
        task_id='print_date',
        bash_command='date',
    )

    postgresConnId = "postgres_default"

    def create_new_person_records(ds, **kwargs):
        db = PostgresHook(postgres_conn_id=postgresConnId)
        conn = db.get_conn()  
        planter_entity(conn)
        return 1


    def earnings_report(ds, **kwargs):
        db = PostgresHook(postgres_conn_id=postgresConnId)
        conn = db.get_conn()
        print("db:", conn)
        contract_earnings_fcc(conn)
        return 1

    def sync_entity_stakeholder_task_function(ds, **kwargs):
        db = PostgresHook(postgres_conn_id=postgresConnId)
        conn = db.get_conn()
        print("db:", conn)
        sync_entity_stakeholder(conn, dry_run=False)
        return 1

    create_new_person_records = PythonOperator(
        task_id='create_new_person_records',
        python_callable=create_new_person_records,
        )

    earnings_report = PythonOperator(
        task_id='earnings_report',
        python_callable=earnings_report,
        )

    sync_entity_stakeholder_task = PythonOperator(
        task_id='sync_entity_stakeholder_task',
        python_callable=sync_entity_stakeholder_task_function,
    )

    create_new_person_records >> sync_entity_stakeholder_task >> earnings_report >> t1