Using PRY remote seamlessly in a Rails server

docker-compose.yml

# config/docker-compose.yml
...

  rails-web:
    hostname: rails-web
    env_file:
      - application.env
    environment:
      - RAILS_ENV
      - PORT=9292
      - PRY_LISTEN_ADDRESS=rails-web
      - PRY_LISTEN_PORT=9876
    image: tenstartups/rails:alpine
    command: web
    ports:
      - 9292
    volumes:
      - ..:/usr/src/app
      - bundler-data:/usr/local/lib/ruby/bundler
    depends_on:
      - redis
      - memcached
      - postgresql
      - minio
      - elasticsearch
      - mosquitto

  rails-app:
    env_file:
      - application.env
    environment:
      - HOME=/usr/src/app
      - RAILS_ENV
    image: tenstartups/rails:alpine
    volumes:
      - ..:/usr/src/app
      - bundler-data:/usr/local/lib/ruby/bundler
    depends_on:
      - redis
      - memcached
      - postgresql
      - minio
      - elasticsearch
      - rails-web
      - rails-worker

...

pry-remote.sh

run --rm rails-app bundle exec pry-remote -w -s rails-web

pry_remote.rb

# config/initializers/pry_remote.rb
unless STDIN.tty?
  class Object
    def pry
      PryRemote::Server.new(self, (ENV['PRY_LISTEN_ADDRESS'] || '127.0.0.1'), (ENV['PRY_LISTEN_PORT'] || 9876)).run
    end
  end
end