OpenMetadata/ingestion/examples/airflow/dags/airflow_lineage_operator.py

#  Copyright 2021 Collate
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#  http://www.apache.org/licenses/LICENSE-2.0
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.
"""
You can run this DAG from the default OM installation
"""

from datetime import datetime, timedelta
from textwrap import dedent

# 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 import BashOperator
from airflow.operators.python import PythonOperator

# These args will get passed on to each operator
# You can override them on a per-task basis during operator initialization
from airflow_provider_openmetadata.lineage.operator import OpenMetadataLineageOperator
from metadata.generated.schema.entity.services.connections.metadata.openMetadataConnection import (
    OpenMetadataConnection,
)
from metadata.generated.schema.security.client.openMetadataJWTClientConfig import (
    OpenMetadataJWTClientConfig,
)

default_args = {
    "retries": 1,
    "retry_delay": timedelta(minutes=5),
}


def explode():
    raise Exception("Oh no!")


with DAG(
    "lineage_tutorial_operator",
    default_args=default_args,
    description="A simple tutorial DAG",
    schedule_interval=timedelta(days=1),
    start_date=datetime(2021, 1, 1),
    catchup=False,
    tags=["example"],
) as dag:

    # t1, t2 and t3 are examples of tasks created by instantiating operators
    t1 = BashOperator(
        task_id="print_date",
        bash_command="date",
        outlets={"tables": ["sample_data.ecommerce_db.shopify.dim_address"]},
    )

    t2 = BashOperator(
        task_id="sleep",
        depends_on_past=False,
        bash_command="sleep 1",
        retries=3,
        inlets={"tables": ["sample_data.ecommerce_db.shopify.dim_customer"]},
    )

    risen = PythonOperator(
        task_id="explode",
        provide_context=True,
        python_callable=explode,
        retries=0,
    )

    dag.doc_md = (
        __doc__  # providing that you have a docstring at the beginning of the DAG
    )
    dag.doc_md = """
    This is a documentation placed anywhere
    """  # otherwise, type it like this
    templated_command = dedent(
        """
    {% for i in range(5) %}
        echo "{{ ds }}"
        echo "{{ macros.ds_add(ds, 7)}}"
        echo "{{ params.my_param }}"
    {% endfor %}
    """
    )

    t3 = BashOperator(
        task_id="templated",
        depends_on_past=False,
        bash_command=templated_command,
        params={"my_param": "Parameter I passed in"},
    )

    t1 >> [t2, t3]

    server_config = OpenMetadataConnection(
        hostPort="http://localhost:8585/api",
        authProvider="openmetadata",
        securityConfig=OpenMetadataJWTClientConfig(
            jwtToken="eyJraWQiOiJHYjM4OWEtOWY3Ni1nZGpzLWE5MmotMDI0MmJrOTQzNTYiLCJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiJ9.eyJzdWIiOiJhZG1pbiIsImlzQm90IjpmYWxzZSwiaXNzIjoib3Blbi1tZXRhZGF0YS5vcmciLCJpYXQiOjE2NjM5Mzg0NjIsImVtYWlsIjoiYWRtaW5Ab3Blbm1ldGFkYXRhLm9yZyJ9.tS8um_5DKu7HgzGBzS1VTA5uUjKWOCU0B_j08WXBiEC0mr0zNREkqVfwFDD-d24HlNEbrqioLsBuFRiwIWKc1m_ZlVQbG7P36RUxhuv2vbSp80FKyNM-Tj93FDzq91jsyNmsQhyNv_fNr3TXfzzSPjHt8Go0FMMP66weoKMgW2PbXlhVKwEuXUHyakLLzewm9UMeQaEiRzhiTMU3UkLXcKbYEJJvfNFcLwSl9W8JCO_l0Yj3ud-qt_nQYEZwqW6u5nfdQllN133iikV4fM5QZsMCnm8Rq1mvLR0y9bmJiD7fwM1tmJ791TUWqmKaTnP49U493VanKpUAfzIiOiIbhg"
        ),
    )

    t4 = OpenMetadataLineageOperator(
        task_id="lineage_op",
        depends_on_past=False,
        server_config=server_config,
        service_name="airflow_lineage_op_service",
        only_keep_dag_lineage=True,
    )

    t1 >> t4