rake task to sync your development Redis as a slave of your production master

gistfile1.rb

namespace :redis do
    
  desc "start sync redis databases to local"
  task :start => :environment do
    uri = URI.parse REDISTOGO_URL
    redis = Net::Telnet::new("Host" => "localhost", "Port" => 6379, "Prompt" => /\z/n)
    redis.cmd("CONFIG SET MASTERAUTH #{uri.password}")
    redis.cmd("SLAVEOF #{uri.host} #{uri.port}")
    redis.close
  end
    
  desc "stop sync redis databases to local"
  task :stop => :environment do
    uri = URI.parse REDISTOGO_URL
    redis = Net::Telnet::new("Host" => "localhost", "Port" => 6379, "Prompt" => /\z/n)
    redis.cmd("SLAVEOF NO ONE")
    redis.close
  end
    
end