HTTPS with Webrick

app.rb

require 'sinatra/base'
require 'openssl'
require 'webrick'
require 'webrick/https'

class App1 < Sinatra::Base
  get '/' do
    'app1'
  end
end

class App2 < Sinatra::Base
  get '/' do
    'app2'
  end
end

app = Rack::Builder.new do 
  map '/app1' do
    run App1
  end
  map '/app2' do
    run App2
  end
end

webrick_options = {
  :Port               => 8443,
  :Logger             => WEBrick::Log::new($stdout, WEBrick::Log::DEBUG),
  :DocumentRoot       => "./public",
  :SSLEnable          => true,
  :SSLCertificate     => OpenSSL::X509::Certificate.new(  File.open("./ssl.pem").read),
  :SSLPrivateKey      => OpenSSL::PKey::RSA.new(          File.open("./ssl.key").read),
  :SSLCertName        => [ [ "CN",WEBrick::Utils::getservername ] ]
}

Rack::Handler::WEBrick.run app, webrick_options