# Revision history [back]

The easiest way to add these services is to edit the answers file that packstack generated (named something like packstack-answers-20140521-005831.txt and located in the directory from which you ran packstack) and to change:

CONFIG_HEAT_INSTALL=n


to:

CONFIG_HEAT_INSTALL=y


And:

CONFIG_CEILOMETER_INSTALL=n


to:

CONFIG_CEILOMETER_INSTALL=y


Make sure the other settings for heat and ceilometer look sane, then re-run packstack:

packstack --answer-file packstack-answers-20140521-005831.txt