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In-person + Virtual
16 -20 May
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Thursday, May 19 • 16:30 - 17:05
From `docker push` to Bytes on Disk: Inside Distribution - Wayne Warren & Adam Wolfe Gordon, DigitalOcean

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If you use containers, at some point you've probably done a `docker pull` or a `docker push`. But, have you ever thought about how those operations work? How does a container image travel to persistent storage in the cloud? What does it look like when it gets there? We hadn't thought much about these questions until we started building DigitalOcean Container Registry (DOCR) on top of the CNCF Distribution codebase in 2019. Working on DOCR required us to learn a lot of the answers and we're excited to share them. In this talk we'll pull back the curtain on how Distribution works. From your registry client, to the OCI Distribution API, to the CNCF Distribution codebase, to bytes on disk, we'll explain exactly how a container image makes it from your computer to the cloud, what it looks like when it gets there, and what happens when you ask for it back. We'll also touch on less-standardized topics such as authentication and the evolving garbage collection implementation in Distribution.

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Speakers
avatar for Adam Wolfe Gordon

Adam Wolfe Gordon

Sr. Software Engineer, DigitalOcean
Adam Wolfe Gordon is a senior engineer at DigitalOcean, where he currently serves as the tech lead for managed Kubernetes and container registry. He previously worked on block storage at DigitalOcean and EMC. Adam is interested in infrastructure products, and likes to spend as much... Read More →
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Wayne Warren

Software Engineer, DigitalOcean
Wayne Warren is a software engineer working on the DigitalOcean Kubernetes and Container Registry products. He's built kernels and filesystems for embedded systems, operated infrastructure and developed tooling for multi-team CI/CD systems, and now spends his days up to his ears in... Read More →



Thursday May 19, 2022 16:30 - 17:05 CEST
Pavilion 3, Room D | Level 2 | Central Forum Feria Valencia