hi All, We are planning to build a private cloud for our department at academic institution. We are a born-in public-cloud institution. Idea is to have a hybrid cloud. Few important requirements: * No vendor lock-in of hardware and software/distribution. * Preferably stable software from openstack.org. * Also need to support Accelerated instances (GPU,FPGA,Other PCIecard). * On standard rack servers with remote systems management for the nodes (IPMI based) * Need to support Instances [VMs (Qemu-KVM), Containers (Docker, LXC), Bare metal (Ubuntu)]. * Workload will be Software Development/Test (on VMs) and Benchmarking (on baremetal/container). * Smooth upgrades. Could anyone suggest stable Openstack installer for our multi-node setup (initially 40 physical machines, later around 80)? Upgrades should be smooth. Any pointers to reference architecture will also be helpful. PS: I have tried devstack recently. It works. Kolla fails. I tried packstack few years back. Appreciate any help. cheers, Maruthi Inukonda.