How to migrate a Rails app from Railway to Render

Migrating a Ruby on Rails application from Railway to Render requires separately moving stateless code and stateful services, with particular care for PostgreSQL data, Redis-backed Sidekiq queues, environment variables, and downtime during cutover. Railway services generally map to Render web services, background workers, private services, cron jobs, managed Postgres, and Key Value, preferably defined together in a version-controlled render.yaml Blueprint that supplies internal connection strings and co-locates resources by region. Rails-specific configuration includes securely providing RAILS_MASTER_KEY to every Rails process, setting WEB_CONCURRENCY to avoid memory exhaustion, defining a health check, using a build script, and running database migrations in a paid-plan pre-deploy command or, on free plans, in the build process but not both. Production database migration requires stopping source writes, exporting Railway Postgres through its public connection, restoring into Render using an appropriate strategy to avoid conflicts with Rails-created schema objects, and checking PostgreSQL versions, extensions, permissions, storage capacity, and client-tool compatibility. Teams must also decide whether to drain or transfer Sidekiq queues, carry over all non-platform-provided secrets and settings, verify authentication, jobs, email, logs, and connections after deployment, and move the custom domain only after the Render environment is confirmed operational.

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