How to Change Airflow Port in Docker Compose for Local Development скачать в хорошем качестве

How to Change Airflow Port in Docker Compose for Local Development

Learn how to easily change the port for Apache Airflow running in a Docker container. This guide walks you through the steps to ensure your setup works seamlessly. --- This video is based on the question https://stackoverflow.com/q/64064662/ asked by the user 'DBA108642' ( https://stackoverflow.com/u/9908952/ ) and on the answer https://stackoverflow.com/a/64064880/ provided by the user 'JustLudo' ( https://stackoverflow.com/u/7436321/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions. Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Airflow change port in docker compose Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l... The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license. If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com. --- Changing the Airflow Port in Docker Compose Apache Airflow is a powerful tool used for orchestrating complex data workflows, and Docker Compose makes it easy to manage multi-container applications. However, it's not uncommon to encounter a scenario where the default port (8080) used by Airflow is already in use by another process. If you've found yourself in this situation, you may be wondering how to change the port your Airflow instance runs on. This guide will walk you through the necessary steps to resolve this issue. The Problem at Hand In your current setup, your docker-compose.yaml file looks something like this: [[See Video to Reveal this Text or Code Snippet]] The issue arises when you try to configure Airflow to use a different port (8081), but the server fails to respond. You've tried options like "8080:8081" and "8081:8081", but neither worked. So, what might you be missing? Understanding Docker Port Mapping Docker uses a specific syntax for port mapping in the docker-compose.yaml file, which operates on the principle of {host: container} mapping. Here’s how this works: Host Port: This is the port number on your local machine. Container Port: This is the port number on which the application inside the Docker container listens. When the syntax is correct, Docker forwards traffic from the specified host port to the container port. Proposed Solution To change your Airflow configuration to listen on port 8081 correctly, you’ll want to specify it in your docker-compose.yaml with the correct mapping. Based on your requirements, here’s how you should modify the ports section for your Airflow webserver service: [[See Video to Reveal this Text or Code Snippet]] Explanation "8081:8080": This configuration indicates that traffic coming to port 8081 on your host machine will be routed to port 8080 inside the container, where Airflow is listening. Since Airflow is set to always run on internal port 8080, this setup ensures it can be accessed via the new host port 8081. Steps to Implement Edit your docker-compose.yaml file to use ports: - "8081:8080". Save the changes to the file. Restart your Docker containers by executing the following command in the terminal: [[See Video to Reveal this Text or Code Snippet]] Access Airflow by navigating to http://localhost:8081 in your web browser. Conclusion By following the above steps, you should now have Apache Airflow running on port 8081 while ensuring that it communicates internally with its intended container port of 8080. In summary, the key takeaway for running Airflow on a different port involves understanding Docker’s port mapping syntax and correctly setting it up in your docker-compose.yaml. Enjoy orchestrating your workflows without the hassle of port conflicts!