You can also manage or update multiple servers with pssh or using configuration management tools like Chef and the application can be easily deployed with Capistrano. When you need to scale the application you just create a snapshot of a server and you replicate it. Usually you have at least one load balancer with HAProxy, some web servers with nginx and Puma, a database (probably Postgresql and Redis with replicas) and maybe some separate servers for background processing (e.g. You can start with a single server, but soon you will need to scale horizontally on multiple servers. your application may become bounded to a specific platform, raising portability concerns.Ī cheaper alternative is using a IaaS, like DigitalOcean.you have constraints imposed by the platform.you don't have full control of your application, which is managed by others, and this may raise concerns about uptime.as the application scales, the cost may become prohibitive for your kind of business.The easiest way for deploying a Rails application is probably using a PaaS, like Heroku, which makes the deployment and scaling extremely simple and lets you forget about servers. Use Cuber (recommended) → History and alternatives to Kubernetes You just need to define a Cuberfile, which is somewhat similar to a Procfile or Capfile, and then publish your app with one command. This is why I built Cuber, a Ruby gem and automation tool that can deploy your apps on Kubernetes with minimal effort. You can also move from a provider to another and you have visibility on your app. Kubernetes offers incredible reliability at a fraction of the cost compared to PaaS solutions (you can save up to 80% on servers). I always wanted the simplicity of a PaaS, or a tool like Capistrano, but for deploying the apps on Kubernetes. Hi, I'm Marco Colli, the author of this guide and the founder of Pushpad, a scalable service for web push notifications.Īfter writing this guide some time ago, I have been working extensively with Kubernetes. This guide covers all the common aspects required for running a Rails application in production, including the deployment and continuous delivery of the web application, the configuration of a load balancer and domain, the environment variables and secrets, the compilation of assets, the database migrations, logging and monitoring, the background workers and cron jobs, and how to run maintenance tasks and updates.Ĭuber - Deploy your apps on Kubernetes easily We focus on the usage of containers for production, rather than development, and we value simple solutions. This guide shows some of the advantages of Kubernetes compared to other solutions and explains how to deploy a Rails application in production using Kubernetes. There are many ways to deploy a Ruby on Rails application: one of them is using Docker containers and Kubernetes for orchestration. Kubernetes & Rails: The Definitive Guide Deploying a Rails application to Kubernetes
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