Kamal — independent third-party profile of a public API surface, by API Evangelist. Kamal is an open-source deployment tool from 37signals (DHH / Basecamp) for deploying containerized web applications to any infrastructure — bare metal, cloud VMs, or a mix — with zero-downtime rolling restarts. Originally built for Rails apps, Kamal works with any
ruby rails docker infrastructure cli ssh open-source devops deployment zero-downtime containers basecamp on-premises apis-json 37signals rolling-deploys
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Updated
Aug 30, 2026