airflow dag_run.execution_date.strftime('%Y%m%d') didn't pass the latest date

[yeangPan]

I have dag looks like :

import pendulum
from datetime import datetime, timedelta
from airflow import DAG
from airflow.operators.empty import EmptyOperator
from airflow.providers.ssh.operators.ssh import SSHOperator

DATE = "{{ dag_run.execution_date.strftime('%Y%m%d') }}"

default_args = {
    "owner": "airflow",
    "depends_on_past": False,
    "start_date": pendulum.datetime(2024, 3, 17, tz="Asia/Shanghai"),
    "email_on_failure": False,
    "email_on_retry": False,
    "retries": 1,
    "retry_delay": timedelta(minutes=5),
}

dag = DAG(
    "DAG",
    default_args=default_args,
    schedule="26 18 * * 1-5",
    catchup=False,
    is_paused_upon_creation=True,
    description="A DAG that uses SSHOperator with EmptyOperator",
)

test = SSHOperator(
    task_id="aaaaa",
    ssh_conn_id="connid",
    command=f"source ~/.bashrc && xxx.sh param1 {DATE}",
    dag=dag,
)

at today ( 20240318) why did the dag gave me the date with 20240315, rather than the current date. how to pass the true date for execution