Module: Capistrano::DSL::Chef

Defined in:
lib/capistrano/dsl/chef.rb

Instance Method Summary collapse

Instance Method Details

#chef_role(name, query = '*:*', options) ⇒ Object 



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# File 'lib/capistrano/dsl/chef.rb', line 4

def chef_role(name, query = '*:*', options)
  arg = options.delete(:attribute) || :ipaddress

  search_proc = case arg
                when Proc
                  arg
                when Hash
                  iface, family = arg.keys.first.to_s, arg.values.first.to_s
                  Proc.new do |n|
                    addresses = n["network"]["interfaces"][iface]["addresses"]
                    addresses.select{|address, data| data["family"] == family }.to_a.first.first
                  end
                when Symbol, String
                  Proc.new{|n| n[arg.to_s]}
                else
                  raise ArgumentError, 'Search arguments must be Proc, Hash, Symbol, String.'
                end

  hosts = chef_search(query).map(&search_proc)

  name = [name] unless name.is_a?(Array)

  user = fetch(:user)

  name.each { |n| role(name, hosts.map { |h| "#{user ? "#{user}@" : ''}#{h}" }) }
end

#chef_search(query) ⇒ Object 



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# File 'lib/capistrano/dsl/chef.rb', line 31

def chef_search(query)
  Module.const_get(:Chef)::Search::Query.new.search(:node, query)[0].compact
end