Posted inDocker
Deploying Ruby on Rails with Docker: Multi-stage Builds, Asset Precompile, and Sidekiq Workers in Production
Deploying Ruby on Rails with Docker typically runs into three major problems: a bloated 1.8GB image, asset precompile failures inside the container, and Sidekiq sharing a process with Puma. This post walks through fixing all three using an optimized multi-stage Dockerfile and a Docker Compose stack with the web and worker services fully separated — drawn from 6 months of production experience.