A framework for building Open Graph images
We recently set about creating a framework and service for automatically generating social sharing images for repositories and other resources on GitHub.
Category
Engineering
GitHub Availability Report: May 2021
In May, we experienced two incidents resulting in significant impact to multiple GitHub services.
Why (and how) GitHub is adopting OpenTelemetry
Over the years, GitHub engineers have developed many ways to observe how our systems behave. We mostly make use of statsd for metrics, the syslog format for plain text logs…
GitHub Artifact Exporter open source release
GitHub Artifact Exporter provides a CLI and a simple GUI for exporting GitHub Issues and related comments based on a date range, and it supports GitHub’s full search syntax.
Security keys are now supported for SSH Git operations
GitHub has been at the forefront of security key adoption for many years. We were an early adopter of Universal 2nd Factor ("U2F") and were also one of the first…
GitHub Availability Report: April 2021
In April, we experienced two incidents resulting in significant impact and degraded state of availability for API requests and the GitHub Packages service, specifically the GitHub Packages Container registry service.…
How we use Web Components at GitHub
At GitHub, we pride ourselves on delivering a first-class developer experience. A considerable part of our work is on our front end, which we strive to keep as lightweight, fast,…
Scaling monorepo maintenance
At GitHub, we serve some of the largest Git repositories on the planet. We also serve some of the fastest-growing repositories. Each day, the largest repositories we host become even…
GitHub Desktop supports hiding whitespace, expanding diffs, and creating repository aliases
GitHub Desktop 2.8 now includes several new features to make it easier to work with diffs and easier for people who have multiple copies of the same repository. Expand diffs…
How we ship code faster and safer with feature flags
At GitHub, we're continually working to improve existing features and shipping new ones all the time. From our launch of GitHub Discussions to the release of manual approvals for GitHub…
GitHub Availability Report: March 2021
In March, we experienced three incidents resulting in significant impact and degraded state of availability for issues, pull requests, webhooks, API requests, GitHub Pages, and GitHub Actions services. Follow up…
Behind GitHub’s new authentication token formats
We're excited to share a deep dive into how our new authentication token formats are built and how these improvements are keeping your tokens more secure. As we continue to…
How we scaled the GitHub API with a sharded, replicated rate limiter in Redis
About a year ago, we migrated an old rate limiter in order to serve more traffic and accommodate a more resilient platform architecture. We adopted a replicated Redis backend with…
GitHub Desktop now supports cherry-picking
GitHub Desktop aims to provide an intuitive way for users to complete everyday Git and GitHub workflows. One of our most requested features from the past year is cherry-picking, and…
How GitHub Actions renders large-scale logs
Rendering logs in a web UI might seem simple: they are just lines of plain text. However, there are a lot of additional features that make them more useful to…