Created
November 17, 2020 18:11
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from datetime import timedelta | |
# The DAG object; we'll need this to instantiate a DAG | |
from airflow import DAG | |
# Operators; we need this to operate! | |
from airflow.operators.bash_operator import BashOperator | |
from airflow.utils.dates import days_ago |
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# You can override them on a per-task basis during operator initialization | |
default_args = { | |
'owner': 'lakshay', | |
'depends_on_past': False, | |
'start_date': days_ago(2), | |
'email': ['airflow@example.com'], | |
'email_on_failure': False, | |
'email_on_retry': False, | |
'retries': 1, | |
'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': some_function, | |
# 'on_success_callback': some_other_function, | |
# 'on_retry_callback': another_function, | |
# 'sla_miss_callback': yet_another_function, | |
# 'trigger_rule': 'all_success' | |
} |
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# define the DAG | |
dag = DAG( | |
'live_cricket_scores', | |
default_args=default_args, | |
description='First example to get Live Cricket Scores', | |
schedule_interval=timedelta(days=1), | |
) |
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# define the first task | |
t1 = BashOperator( | |
task_id='print', | |
bash_command='echo Getting Live Cricket Scores!!!', | |
dag=dag, | |
) | |
# define the second task | |
t2 = BashOperator( | |
task_id='get_cricket_scores', | |
bash_command='cricket scores', | |
dag=dag, | |
) | |
# task pipeline | |
t1 >> t2 |
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