+<% node[:prometheus][:metrics].sort.each do |name, details| -%>
+# HELP <%= name %> <%= details[:help] %>
+# TYPE <%= name %> gauge
+<%= name %>{<%= Hash(details[:labels]).map { |k,v| "#{k}=\"#{v}\"" }.join(",") %>} <%= details[:metric] || 1 %>
+<% end -%>