--- title: How to deploy an existing Rails app for free | daily.dev description: A step-by-step guide for deploying an existing Rails application to Miren Club, a free shared cluster. Covers prerequisites (Miren CLI, rv tool),... canonical: https://daily.dev/posts/how-to-deploy-an-existing-rails-app-for-free-ibyjfao1o twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: How to deploy an existing Rails app for free | daily.dev og:description: A step-by-step guide for deploying an existing Rails application to Miren Club, a free shared cluster. Covers prerequisites (Miren CLI, rv tool),... og:url: https://daily.dev/posts/how-to-deploy-an-existing-rails-app-for-free-ibyjfao1o og:image: https://api.daily.dev/og/posts/IByjFaO1O.png og:image:alt: How to deploy an existing Rails app for free 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. # How to deploy an existing Rails app for free **[Ruby Flow](https://daily.dev/sources/rubyflow)** · 4 min read · 0 upvotes · 0 comments ## Summary A step-by-step guide for deploying an existing Rails application to Miren Club, a free shared cluster. Covers prerequisites (Miren CLI, rv tool), authentication, app configuration (database.yml, storage.yml, app.toml), encrypted credentials setup, initial deployment with the miren CLI, route configuration, environment variable setup for RAILS_MASTER_KEY, and database schema loading. Uses the toronto-ruby.com open source app as a real-world example. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [How to deploy Ruby apps to the Miren demo cluster for free](https://daily.dev/posts/how-to-deploy-ruby-apps-to-the-miren-demo-cluster-for-free-daa6ttbmz) · Ruby Flow · 1 upvotes · 0 comments - [How to self-host your Ruby apps](https://daily.dev/posts/how-to-self-host-your-ruby-apps-6dj8fesfp) · Ruby Flow · 0 upvotes · 0 comments - [Migrating a Rails App From Heroku to Railway - FastRuby.io](https://daily.dev/posts/migrating-a-rails-app-from-heroku-to-railway---fastruby-io-qcvcn70up) · RUBYLAND · 0 upvotes · 0 comments - [Where do you deploy your Ruby apps?](https://daily.dev/posts/where-do-you-deploy-your-ruby-apps--tutd1axhq) · Ruby Flow · 0 upvotes · 0 comments --- Tags: [#cicd](https://daily.dev/tags/cicd), [#postgresql](https://daily.dev/tags/postgresql), [#ruby](https://daily.dev/tags/ruby), [#rails](https://daily.dev/tags/rails) [View this post on daily.dev](https://daily.dev/posts/how-to-deploy-an-existing-rails-app-for-free-ibyjfao1o) ```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":"How to deploy an existing Rails app for free","url":"https://daily.dev/posts/how-to-deploy-an-existing-rails-app-for-free-ibyjfao1o","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/how-to-deploy-an-existing-rails-app-for-free-ibyjfao1o"},"datePublished":"2026-07-16T21:15:53.491Z","dateModified":"2026-07-16T21:16:14.175Z","description":"A step-by-step guide for deploying an existing Rails application to Miren Club, a free shared cluster. 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