REGEX-Escape for: sql_alchemy_conn = sqlite:////home/ubuntu/airflow/airflow.db

Your Input:
Result, the escaped string:
sql_alchemy_conn \= sqlite\:\/\/\/\/home\/ubuntu\/airflow\/airflow\.db

What must the escaping look like for:
sql_alchemy_conn = sqlite:////home/ubuntu/airflow/airflow.db

The excaped text for use in a regex is:
sql_alchemy_conn \= sqlite\:\/\/\/\/home\/ubuntu\/airflow\/airflow\.db