Required external components

Airflow requires an SQL database to operate. The Airflow documentation specifies:

Fully supported for production usage:

  • PostgreSQL: 11, 12, 13, 14, 15

  • MySQL: 5.7, 8

Supported for development and testing purposes:

  • SQLite: 3.15.0+

Experimental support:

  • MSSQL: 2017, 2019

The Celery exectutor also requires:

  • Redis (any stable version)