Deploy Rails to Hetzner

Steps

1. 1

   Create a Hetzner API token

   In the Hetzner Cloud Console, open your project, then Security, then API tokens, and generate a token with Read & Write permission. Paste it into Railyard and tick Save it to the team, so it's reused for every server after this one.

2. 2

   Add a Hetzner server

   In Railyard, open Servers, then Add a server, then Create on your cloud, and pick Hetzner, a region and a size. Railyard preselects cx22 (2 vCPU, 4 GB of memory). It creates the server in your Hetzner account and installs Docker, Caddy and its agent in about two minutes.

3. 3

   Deploy your Rails repository

   Paste the GitHub link. Railyard reads the repository, detects Rails and fills in the build, the port, the release command, workers and Postgres, MySQL and Redis.

4. 4

   Go live on HTTPS

   Railyard builds on a separate build server, runs the release command, health-checks the new version and moves traffic only when it answers. Add your domain and the certificate is issued and renewed for you.

What Railyard sets up for Rails

• bin/rails db:prepare runs before every release.
• pg becomes Postgres, mysql2 or trilogy becomes MySQL, and redis or sidekiq becomes Redis.
• Sidekiq, Solid Queue, GoodJob, Resque and Delayed Job are offered as workers from your Gemfile.lock.
• Rails 8 cache, queue and cable databases each get their own connection string.
• Active Storage on disk gets a persistent volume, and SECRET_KEY_BASE is generated once.

Hetzner regions

Nuremberg, Falkenstein and Helsinki keep your data in the EU.

• Nuremberg
• Falkenstein
• Helsinki
• Ashburn
• Hillsboro
• Singapore

Questions