Launch the Rails app locally in production mode (API Server)

Here are the steps to get Rails to start locally in production mode.

This time, only the steps required to use Rails as an API server.

environment

• macOS Catalina 10.15.7
• Ruby 2.7.2
• Rails 6.0.3.4
• MySQL 5.7.32

procedure

database.yml settings

To check the operation, you can set the same settings as when you started in development mode except for the DB name. If it is the same as when rails new, it should look like this.

database.yml

default: &default
  adapter: mysql2
  encoding: utf8mb4
  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
  username: root
  password:
  host: localhost

development:
  <<: *default
  database: my_app_development

test:
  <<: *default
  database: my_app_test

production:
  <<: *default
  database: my_app_production

DB setup

% RAILS_ENV=production bundle exec rails db:setup
Created database 'my_app_production'

Just db: setup should do db: create, db: migrate, db: seed.

Start the server in production mode

$ bundle exec rails s -e production

If you can confirm access with curl etc., it's OK.

The application that I confirmed to work had sidekiq installed, so I accessed / sidekiq, but it worked fine.

in conclusion

Did it work so easily, even though it's just an API server?

I wonder if it's easier than it used to be.