que-web is a web UI to the Que job queue.

Add this line to your application's Gemfile:

gem 'que-web'

And then execute:

$ bundle

Or install it yourself as:

$ gem install que-web

Add in config.ru:

require "que/web"

map "/que" do
  run Que::Web
end

In config/routes.rb:

require "que/web"
mount Que::Web => "/que"

You must use the master branch of Sinatra for que-web. In your gemfile:

gem 'que-web'
gem 'sinatra', git: 'https://github.com/sinatra/sinatra'

See sinatra/sinatra#1071

# config/routes.rb
authenticate :user do
  mount Que::Web, at: 'que'
end

In config/initializers/queweb.rb:

Que::Web.use(Rack::Auth::Basic) do |user, password|
  [user, password] == [ENV["QUEWEB_USERNAME"], ENV["QUEWEB_PASSWORD"]]
end

Then add the two environment variables to your production environment.

Run:

docker run -e DATABASE_URL=postgres://username:password@hostname/db_name -p 3002:8080 joevandyk/que-web

Or use docker/Dockerfile to build your own container.