OpenShift rake task to create dumpfile

dump.rake

namespace :db do

  desc "Make OpenShift database dump"
  task :dump do
    enviroment = Rails.env || ENV['RAILS_ENV'] || 'production'
    config = Rails.configuration.database_configuration[enviroment]
    password = config['password']
    username = config['username'] || 'root'
    host     = config['host']
    port     = config['port'] || 3306
    filemame = ['backup', Time.now.strftime("%Y%m%d")].join('_')
    `mysqldump -h#{host} -P#{port} -u#{username} -p#{password} --all-databases >  ~/app-root/data/tmp/#{filemame}.sql`
    puts "Finished. Filename: #{filemame}"
  end

end