resolve_dns_name

in cookbooks/fb_helpers/libraries/node_methods.rb [461:479]

• 17 lines of code
• 6 McCabe index (conditional complexity)

    def resolve_dns_name(hostname, brackets = false, force_v4 = false)
      ip_addrs = Addrinfo.getaddrinfo(hostname, nil)
      ip_addrs_v4 = ip_addrs.select(&:ipv4?)
      ip_addrs_v6 = ip_addrs.select(&:ipv6?)
      if !ip_addrs_v6.empty? && !force_v4
        
        v6_addr = ip_addrs_v6.map(&:ip_address).uniq[0]
        if brackets
          return "[#{v6_addr}]"
        else
          return v6_addr
        end
      elsif !ip_addrs_v4.empty?
        return ip_addrs_v4.map(&:ip_address).uniq[0]
      else
        fail SocketError, 'fb_helpers: No ipv4 addrs found for a non-v6 host'
      end
    end