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Category: Guides

Telling OpenSSH to Pull Keys from Github with AuthorizedKeysCommand

Posted on November 19, 2021December 29, 2023 by Robert Hafner

Using the AuthorizedKeysCommand OpenSSH option to pull your SSH Keys directly from Github.

Using Github Actions OpenID Connect to push to AWS ECR without Credentials

Posted on October 29, 2021November 24, 2021 by Robert Hafner

Learn how to push images from Github to AWS ECR using the Github Actions OpenID Connector.

Getting AWS ECS to work on Ubuntu with Full GPU Support

Posted on July 6, 2020October 30, 2021 by Robert Hafner

I’m a big fan of Amazon ECS- it’s a remarkably simple containerization service that integrates with the rest of AWS’s services relatively easily. While I’d generally prefer to run with Fargate there are times when I need to have a bit more control over the underlying machines- especially when it comes to tasks using GPUs….

http://www.flickr.com/photos/sarabbit/4549185468

Planning to Go Down, HTTP Edition

Posted on January 11, 2014October 30, 2021 by Robert Hafner

Whether it’s from a planned upgrade or a blown RAID, your site is going to go down eventually. This was brought to light for a lot of people by a recent outage on Hacker News- an outage that was made worse by HN responding with 200 Status Codes. During the subsequent discussion I posted a…

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Robert Hafner is a Principal Engineer based in Chicago focusing on distributed applications, infrastructure, and security. This blog is a running journal of projects, tutorials, and random ideas that pop into his head.

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