Capistrano 3 role based linked files

Question

Is it possible to configure Capistrano 3 to link different files based on a role using built-in linked_files?

I have servers with a role worker, which don't need to have web-stuff related files linked (i.e. sitemap.xml file).

Answer 1

Short answer: no, variables in Capistrano (e.g. :linked_files) are global and cannot have different values per host/role.

You could possibly make it work by redefining the deploy:symlink:linked_files and deploy:check:linked_files tasks with your own custom implementation. That implementation could, for example, perform different linking for different roles.

Rake::Task["deploy:symlink:linked_files"].clear_actions

task "deploy:symlink:linked_files" do
  on release_roles(:web) do
    execute :ln, "-s", ...
    execute :ln, "-s", ...
    # etc.
  end
  on release_roles(:app) do
    execute :ln, "-s", ...
    execute :ln, "-s", ...
    # etc.
  end
end

However, I would recommend against this for two reasons:

1. It is a lot of code to write
2. You lose Capistrano "magic" where Capistrano plugins inject things into :linked_files