Multi-Environment Vlad the Easy Way

Published 2009-03-24 @ 14:58

Tagged rails, vlad

Here is the clean and easy way to do multiple environments in vlad. Here is my deploy.rb:

  set :application, "proj"
  set :repository,  "https://subversion/proj/trunk"
  
  task :beta do
    set :domain,    "localhost"
    set :deploy_to, "/tmp/proj_beta"
  end
  
  task :dev do
    set :domain,    "localhost"
    set :deploy_to, "/tmp/proj_dev"
  end
  
  task :prod do
    set :domain,    "localhost"
    set :deploy_to, "/tmp/proj_prod"
  end

By not specifying domain or deploy_to globally you force the use of an environment whenever you invoke a vlad task:

  % rake vlad:debug | egrep "(domain|deploy_to):"
  rake aborted!
  Please specify the deploy path via the :deploy_to variable

Here is what it looks like with one of the three defined environments:

  % rake beta vlad:debug | egrep "(domain|deploy_to):"
  domain: localhost
  deploy_to: /tmp/proj_beta
  % rake dev vlad:debug | egrep "(domain|deploy_to):"
  domain: localhost
  deploy_to: /tmp/proj_dev
  % rake prod vlad:debug | egrep "(domain|deploy_to):"
  domain: localhost
  deploy_to: /tmp/proj_prod