| .. Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
| with the License. You may obtain a copy of the License at |
| |
| .. http://www.apache.org/licenses/LICENSE-2.0 |
| |
| .. Unless required by applicable law or agreed to in writing, |
| software distributed under the License is distributed on an |
| "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| KIND, either express or implied. See the License for the |
| specific language governing permissions and limitations |
| under the License. |
| |
| Prerequisites |
| ------------- |
| |
| Airflow is tested with: |
| |
| * Python: 3.6, 3.7, 3.8, 3.9 |
| |
| * Databases: |
| |
| * PostgreSQL: 9.6, 10, 11, 12, 13 |
| * MySQL: 5.7, 8 |
| * SQLite: 3.15.0+ |
| * MSSQL(Experimental): 2017, 2019 |
| |
| * Kubernetes: 1.18.15 1.19.7 1.20.2 |
| |
| **Note:** MySQL 5.x versions are unable to or have limitations with |
| running multiple schedulers -- please see: :doc:`/concepts/scheduler`. MariaDB is not tested/recommended. |
| |
| **Note:** SQLite is used in Airflow tests. Do not use it in production. We recommend |
| using the latest stable version of SQLite for local development. |
| |
| **Note**: Python v3.10 is not supported yet. For details, see `#19059 <https://github.com/apache/airflow/issues/19059>`__. |
| |
| Starting with Airflow 2.1.2, Airflow is tested with Python 3.6, 3.7, 3.8, and 3.9. |
| |
| The minimum memory required we recommend Airflow to run with is 4GB, but the actual requirements depends |
| wildly on the deployment options you have |
| |
| **Note**: Airflow currently can be run on POSIX-compliant Operating Systems. For development it is regularly |
| tested on fairly modern Linux Distros and recent versions of MacOS. |
| On Windows you can run it via WSL2 (Windows Subsystem for Linux 2) or via Linux Containers. |
| The work to add Windows support is tracked via `#10388 <https://github.com/apache/airflow/issues/10388>`__ but |
| it is not a high priority. You should only use Linux-based distros as "Production" execution environment |
| as this is the only environment that is supported. The only distro that is used in our CI tests and that |
| is used in the `Community managed DockerHub image <https://hub.docker.com/p/apache/airflow>`__ is |
| ``Debian Buster``. |
