--- title: Arch Linux Now Has a Bit-for-Bit Reproducible Docker Image description: Arch Linux has achieved a bit-for-bit reproducible Docker image, now available under the 'repro' tag on Docker Hub. The main caveat is that pacman keys are... canonical: https://daily.dev/posts/arch-linux-now-has-a-bit-for-bit-reproducible-docker-image-5pg5dirji twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Arch Linux Now Has a Bit-for-Bit Reproducible Docker Image | daily.dev og:description: Arch Linux has achieved a bit-for-bit reproducible Docker image, now available under the 'repro' tag on Docker Hub. The main caveat is that pacman keys are... og:url: https://daily.dev/posts/arch-linux-now-has-a-bit-for-bit-reproducible-docker-image-5pg5dirji og:image: https://api.daily.dev/og/posts/5pg5dirji.png og:image:alt: Arch Linux Now Has a Bit-for-Bit Reproducible Docker Image og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Arch Linux Now Has a Bit-for-Bit Reproducible Docker Image **[Lobsters](https://daily.dev/sources/lobsters)** · 3 min read · 0 upvotes · 0 comments ## Summary Arch Linux has achieved a bit-for-bit reproducible Docker image, now available under the 'repro' tag on Docker Hub. The main caveat is that pacman keys are stripped to ensure reproducibility, requiring users to reinitialize the keyring before using pacman. Key technical steps included setting SOURCE_DATE_EPOCH, removing the ldconfig auxiliary cache, and normalizing timestamps during builds. Reproducibility is verified via digest equality and the diffoci tool. This milestone follows a similar achievement for the Arch Linux WSL image. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Arch Linux now has a reproducible container image](https://daily.dev/posts/arch-linux-now-has-a-reproducible-container-image-pgzyu6qe8) · LWN.net · 0 upvotes · 0 comments - [Reproducible builds in Project Hummingbird](https://daily.dev/posts/reproducible-builds-in-project-hummingbird-yanscthzc) · Red Hat Developer · 0 upvotes · 0 comments --- Tags: [#linux](https://daily.dev/tags/linux), [#docker](https://daily.dev/tags/docker), [#containers](https://daily.dev/tags/containers) [View this post on daily.dev](https://daily.dev/posts/arch-linux-now-has-a-bit-for-bit-reproducible-docker-image-5pg5dirji) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Arch Linux Now Has a Bit-for-Bit Reproducible Docker Image","url":"https://daily.dev/posts/arch-linux-now-has-a-bit-for-bit-reproducible-docker-image-5pg5dirji","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/arch-linux-now-has-a-bit-for-bit-reproducible-docker-image-5pg5dirji"},"datePublished":"2026-04-23T03:41:27.817Z","dateModified":"2026-04-23T03:41:57.796Z","description":"Arch Linux has achieved a bit-for-bit reproducible Docker image, now available under the 'repro' tag on Docker Hub. 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