CODEWITHSUNDEEP
ruby-on-railscapistrano
Alex Smolov
Alex Smolov

Reputation: 1861

Creating a symlink with sudo in Capistrano 3.x

I am deploying my Rails app with Capistrano 3. I've struggled all the way through, but now when everything is almost done I cannot create a symlink through a Capistrano task.

With Capistrano 2.x I could easily do it with the following line:

sudo "ln -nfs #{current_path}/config/nginx.conf /etc/nginx/sites-enabled/#{application}"

Now Capistrano 3 has advocated passwordless sudo approach as described here.

I've added the following line to sudoers

deployer ALL=NOPASSWD:/etc/init.d/sites-enabled/application-name

and changed my command in Capistrano task to:

execute :sudo, :ln, "-nfs", "#{current_path}/nginx.conf /etc/nginx/sites-enabled/#{fetch(:application)}"

What am I missing? Is the line I added to sudoers correct?

Thank you!

Upvotes: 1

Views: 1427

Answers (1)

Ivan Zamylin
Ivan Zamylin

Reputation: 1748

Alex, when you edit sudoers, you should list commands you would like to execute (not the files you'd like to symlink).

Thus, the line in sudoers should be as follows:

deployer ALL=NOPASSWD:/bin/ln -nfs /current/path/config/nginx.conf /etc/nginx/sites-enabled/application-name

You can also make it more general:

deployer ALL=NOPASSWD:/bin/ln -nfs /current/path/* /etc/nginx/sites-enabled/*

but it will be less secure.

Upvotes: 3

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