Rails console for capistrano and rbenv

capistrano_rails_console.rb

namespace :rails do
  desc "Open the rails console"
  task :console do
    on roles(:app) do
      rails_env = fetch(:rails_env, 'production')
      execute_interactively "$HOME/.rbenv/bin/rbenv exec bundle exec rails console #{rails_env}"
    end
  end

  desc "Open the rails dbconsole"
  task :dbconsole do
    on roles(:app) do
      rails_env = fetch(:rails_env, 'production')
      execute_interactively "$HOME/.rbenv/bin/rbenv exec bundle exec rails dbconsole #{rails_env}"
    end
  end

  def execute_interactively(command)
    user = fetch(:user)
    port = fetch(:port) || 22
    exec "ssh -l #{user} #{host} -p #{port} -t 'cd #{deploy_to}/current && #{command}'"
  end
end