Restart nginx without sudo?

Question

So I want to be able to cap:deploy without having to type any passwords. I have setup all private keys so I can get to the remote servers fine, and am now using svn over ssh, so

Answer 1

Create a rake task in Rails_App/lib/capistrano/tasks/nginx.rake and paste below code.

namespace :nginx do
  %w(start stop restart reload).each do |command|
    desc "#{command.capitalize} Nginx"
    task command do
      on roles(:app) do
        execute :sudo, "service nginx #{command}"
      end
    end
  end
end

Then ssh to your remote server and open file

  sudo vi /etc/sudoers

and the paste this line (after line %sudo ALL=(ALL:ALL) ALL)

  deploy ALL=(ALL:ALL) NOPASSWD: /usr/sbin/service nginx *

Or, as in your case,

  deploy ALL=(ALL:ALL) NOPASSWD: /etc/init.d/nginx *

Here I am assuming your deployment user is deploy.

You can add here other commands too for which you dont require to enter password. For example

  deploy ALL=(ALL:ALL) NOPASSWD: /usr/sbin/service nginx *, /etc/init.d/mysqld, /etc/init.d/apache2