Scaling Docker to Serve Millions More Developers: Network Egress

Scaling Docker to Serve Millions More Developers: Network Egress

Learn from Docker experts to simplify and advance your app development and management with Docker. Stay up to date on Docker events and new version announcements! Scaling Docker to Serve Millions More Developers: Network Egress

In Part 1 of this blog we went into a deep dive that analyzed all of the images stored in Docker Hub, the world’s largest container registry. We did this to give you a better understanding of how our new Terms of Service updates will impact development teams who use Docker Hub to manage their container images and CI/CD pipelines.

Part 2 of this blog post takes a deep dive into rate limits for container image pulls. This was also announced as part of our updated Docker Terms of Service (ToS) communications. We detailed the following pull rate limits to Docker subscription plans that will take effect November 1, 2020:

  • Free plan – anonymous users: 100 pulls per 6 hours 
  • Free plan – authenticated users: 200 pulls per 6 hours
  • Pro plan – unlimited
  • Team plan – unlimited

Docker defines pull rate limits as the number of manifest requests to Docker Hub. Rate limits for Docker image pulls are based on the account type of the user requesting the image – not the account type of the image’s owner. For anonymous (unauthenticated) users, pull rates are limited based on the individual IP address. 

We’ve been getting questions from customers and the community regarding container image layers. We are not counting image layers as part of the pull rate limits. Because we are limiting on manifest requests, the number of layers (blob requests) related to a pull is unlimited at this time. This is a change based on community feedback in order to be more user-friendly, so users do not need to count layers on each image they may be using.

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