Hi, after exploring openstack via tripleo deployment, I encountered several issues especially during overcloud deployment. Most of the time I'm referring to openstack official web guideline and some other blogs resources. From my experiences I face problems identifying the right templates and the right command for my deployment. I have seen templates created in guideline web and some other examples. Even the command line to deploy overcloud is also a bit different from one example to another. I understand it is because of different requirements and setup. So many templates and several ways of deployment always made me puzzle and endup with deployment failure. I would like some advice to know what are the common or important templates/yaml files and overcloud command to use if I just want to deploy 3 controllers (ha) and several computes only. I also have plan to get dpdk in my deployment but...this will be later as I would like to successfully establish simple deployment with controllers and computes for now. Appreciate your good advice and support. Thank you all.