<!-- 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. --> <!-- PLEASE DO NOT MODIFY THIS FILE. IT HAS BEEN GENERATED AUTOMATICALLY FROM THE `README.md` FILE OF THE PROJECT BY THE `generate-pypi-readme` PREK HOOK. YOUR CHANGES HERE WILL BE AUTOMATICALLY OVERWRITTEN.-->

Apache Airflow

Category	Badges
License
PyPI
Containers
Community
Dev tools

Version	Build Status
Main
3.x
2.x

<picture width="500"> <img src="https://github.com/apache/airflow/blob/19ebcac2395ef9a6b6ded3a2faa29dc960c1e635/docs/apache-airflow/img/logos/wordmark_1.png?raw=true" alt="Apache Airflow logo" /> </picture>

Apache Airflow (or simply Airflow) is a platform to programmatically author, schedule, and monitor workflows.

When workflows are defined as code, they become more maintainable, versionable, testable, and collaborative.

Use Airflow to author workflows (Dags) that orchestrate tasks. The Airflow scheduler executes your tasks on an array of workers while following the specified dependencies. Rich command line utilities make performing complex surgeries on Dags a snap. The rich user interface makes it easy to visualize pipelines running in production, monitor progress, and troubleshoot issues when needed.

Requirements

Apache Airflow is tested with:

	Main version (dev)	Stable version (3.1.7)
Python	3.10, 3.11, 3.12, 3.13	3.10, 3.11, 3.12, 3.13
Platform	AMD64/ARM64(*)	AMD64/ARM64(*)
Kubernetes	1.30, 1.31, 1.32, 1.33, 1.34	1.30, 1.31, 1.32, 1.33
PostgreSQL	13, 14, 15, 16, 17	13, 14, 15, 16, 17
MySQL	8.0, 8.4, Innovation	8.0, 8.4, Innovation
SQLite	3.15.0+	3.15.0+

* Experimental

Note: 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: 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, 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 is Debian Bookworm.

Getting started

Visit the official Airflow website documentation (latest stable release) for help with installing Airflow, getting started, or walking through a more complete tutorial.

Note: If you're looking for documentation for the main branch (latest development branch): you can find it on s.apache.org/airflow-docs.

For more information on Airflow Improvement Proposals (AIPs), visit the Airflow Wiki.

Documentation for dependent projects like provider distributions, Docker image, Helm Chart, you'll find it in the documentation index.

Installing from PyPI

We publish Apache Airflow as apache-airflow package in PyPI. Installing it however might be sometimes tricky because Airflow is a bit of both a library and application. Libraries usually keep their dependencies open, and applications usually pin them, but we should do neither and both simultaneously. We decided to keep our dependencies as open as possible (in pyproject.toml) so users can install different versions of libraries if needed. This means that pip install apache-airflow will not work from time to time or will produce unusable Airflow installation.

To have repeatable installation, however, we keep a set of "known-to-be-working" constraint files in the orphan constraints-main and constraints-2-0 branches. We keep those "known-to-be-working" constraints files separately per major/minor Python version. You can use them as constraint files when installing Airflow from PyPI. Note that you have to specify correct Airflow tag/version/branch and Python versions in the URL.

1. Installing just