Capistrano 3 sudo task

Question

I want to write a recipe with Capistrano 3 executing a task on the remote server with sudo.

With Capistrano 2 this could be done for example:

default_run         


        

Answer 1

To resolve this issue I needed to add set :pty, true to my deploy.rb file.

I can now run the following:

# config valid only for Capistrano 3.1
lock '3.1.0'

set :application, 'APP_NAME'
set :pty, true
set :ssh_options, {:forward_agent => true}

namespace :deploy do

  desc 'Restart NGINX'
  task :restart do
    on roles(:app), in: :sequence, wait: 1 do
       execute :sudo, "./restart.sh"
    end
  end

end

This task basically runs a shell script called restart.sh that has a command within sudo service nginx restart.