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How to symlink additional config file on application deployment

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kostiantyn.kahanskyi

26 Mar, 2012 08:46 AM

Hello,

I'm deploying a Scalarium application, which beside "database.yml" etc. has some custom configuration files, which should be shared between deployments. What is the best way to achieve this?

Thanks!

1. Support Staff 2 Posted by Jonathan Weiss on 26 Mar, 2012 11:51 AM

   

   The best way to do this is using deploy-hooks, see http://wiki.opscode.com/display/chef/Deploy+Resource#DeployResource...

   an example would be deploy/before_migrate.rb:

     Chef::Log.info "Looking for files to symlink in #{release_path}/../../shared/config/*"
   
     known_configs = %w(my_special.yml another.yml).map{|c| "#{release_path}/../../shared/config/#{c}" }
     files_to_symlink =  Dir.glob("#{release_path}/../../shared/config/*") + known_configs
   
     files_to_symlink.each do |config|
       config = ::File.expand_path(config)
       Chef::Log.info "Checking shared config #{config}"
       if ::File.exists?("#{release_path}/config/#{::File.basename(config)}")
         Chef::Log.info "skipping #{config}"
       else
         Chef::Log.info "Symlinking #{config}"
         system("ln -s #{config} #{release_path}/config/#{::File.basename(config)}")
       end
     end
   

   This would symlink the my_special.yml another.yml from shared/config to current/config on every dpeloy.

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2. Jonathan Weiss closed this discussion on 26 Mar, 2012 11:51 AM.

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