Source code for tests.system.apache.druid.example_druid_dag

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"""
Example Airflow DAG to submit Apache Druid json index file using `DruidOperator`
"""

from __future__ import annotations

import os
from datetime import datetime

from airflow.models import DAG
from airflow.providers.apache.druid.operators.druid import DruidOperator


[docs]
ENV_ID = os.environ.get("SYSTEM_TESTS_ENV_ID")


[docs]
DAG_ID = "example_druid_operator"


with DAG(
    dag_id=DAG_ID,
    schedule=None,
    start_date=datetime(2021, 1, 1),
    catchup=False,
    tags=["example"],
) as dag:
    # [START howto_operator_druid_submit]

[docs]
    submit_job = DruidOperator(task_id="spark_submit_job", json_index_file="json_index.json")

    # Example content of json_index.json:
    JSON_INDEX_STR = """
        {
            "type": "index_hadoop",
            "datasource": "datasource_prd",
            "spec": {
                "dataSchema": {
                    "granularitySpec": {
                        "intervals": ["2021-09-01/2021-09-02"]
                    }
                }
            }
        }
    """
    # [END howto_operator_druid_submit]

from tests_common.test_utils.system_tests import get_test_run  # noqa: E402

# Needed to run the example DAG with pytest (see: tests/system/README.md#run_via_pytest)

[docs]
test_run = get_test_run(dag)