git permission denied error in airflow dag when access git in subprocess or bashoperator

[hegdeashwin]

I'm using Airflow on my local env. As part of of the task in Airflow DAG I need to execute git clone command either using subprocess or BashOperator however it fails with git permission denied error. Its able to execute ls and echo command but not git.

Note - Git is already installed on my system.

DAG code with subprocess

from airflow.models import DAG
from airflow.operators.python import PythonOperator
from datetime import datetime
import subprocess
import shlex
from airflow.operators.bash import BashOperator

default_args = {
 'start_date': datetime(2024, 1, 1),
 'catchup': False
}

def _sub_process():
    cmd = ["ls"]
    p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
    stdout, stderr = p.communicate()
    print(stdout)
    if p.returncode != 0:
      print(stderr)

with DAG('sub_processing', 
    schedule_interval='@hourly', 
    default_args=default_args) as dag:
    #Define tasks/operators

    sub = PythonOperator(
        task_id='sub',
        python_callable=_sub_process
    )

DAG code with BashOperator

from airflow.models import DAG
from airflow.operators.python import PythonOperator
from datetime import datetime
import subprocess
import shlex
from airflow.operators.bash import BashOperator

default_args = {
 'start_date': datetime(2024, 1, 1),
 'catchup': False
}

with DAG('sub_processing', 
    schedule_interval='@hourly', 
    default_args=default_args) as dag:

    run_this1 = BashOperator(
        task_id="run_after_loop1",
        bash_command='echo "hello world"'
    )


    run_this2 = BashOperator(
        task_id="run_after_loop2",
        bash_command="ls",
    )


    run_this3 = BashOperator(
        task_id="run_after_loop3",
        bash_command="git --version",
    )

    run_this1 >> run_this2 >> run_this3

I'm not sure why Airflow DAG task is not able to execute git command. Need help here