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In this short tutorial we will discuss topic: Apache Airflow How to create Fernet key Python.

Apache Airflow How to create Fernet key Python

What is Fernet Key?

Fernet is used by Airflow to encrypt passwords in the connection and variable configurations. It ensures that a password encrypted using it can’t be read or manipulated without the key. Fernet is a symmetric (sometimes known as “secret key”) authenticated cryptography system.

Install cryptography if is missing in Apache Airflow

pip install cryptography

Create new Airflow Fernet Key

python -c "from cryptography.fernet import Fernet; print(Fernet.generate_key().decode())"
30NkeeYthODONuaGqBNb13x_q_DSWuG6IUKpyb3t4Pc=

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 as directed acyclic graphs (DAGs) of 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.

Airflow works best with workflows that are mostly static and slowly changing. When the DAG structure is similar from one run to the next, it clarifies the unit of work and continuity. Other similar projects include Luigi, Oozie and Azkaban.

Airflow is commonly used to process data, but has the opinion that tasks should ideally be idempotent (i.e., results of the task will be the same, and will not create duplicated data in a destination system), and should not pass large quantities of data from one task to the next (though tasks can pass metadata using Airflow’s Xcom feature). For high-volume, data-intensive tasks, a best practice is to delegate to external services specializing in that type of work.

Airflow is not a streaming solution, but it is often used to process real-time data, pulling data off streams in batches.

// Apache Airflow How to create Fernet key Python

https://github.com/apache/airflow

Apache Airflow How to create Fernet key Python

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