[jira] [Created] (AIRFLOW-2526) params can be overridden through CLI

["Chao-Han Tsai (JIRA)" <ji...@apache.org>]

Chao-Han Tsai created AIRFLOW-2526:
--------------------------------------

             Summary: params can be overridden through CLI
                 Key: AIRFLOW-2526
                 URL: https://issues.apache.org/jira/browse/AIRFLOW-2526
             Project: Apache Airflow
          Issue Type: New Feature
            Reporter: Chao-Han Tsai
            Assignee: Chao-Han Tsai


The idea is that the values in macros can be overridden through CLI.

Given a dag like this:
{code:java}
dag = DAG('hello_world')

templated_command = """
    echo "text = {{ params.text }}"
"""

bash_operator = BashOperator(
    task_id='bash_task',
    bash_command=templated_command,
    dag=dag,
    params={"text": "this text should be overridden"}
    )
{code}
running
{code:java}
airflow trigger_dag hello_world -c "{"text": "overridden successfully"}"
{code}
should print
{code}
 overridden successfully
{code}



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