Comment by esxzawq for I have used virtualbox 1 vm for Controller ( 8G or 6G ram , 4 core cpu) 1 vm for Compute ( 4G ram , 4 or 2 core cpu) Each vm has 2 network interfaces 1- bridg adapter for provider network 2- vboxnet for management network (10.0.0.0/24 base on the tutorials) An then followed this toturial : https://docs.openstack.org/install-gu...

I only have one physical machine ( my laptop ) and installed the virtualbox on it, **controller** and the **compute** nodes are vm's of virtualbox. I have used this method just for testing and understanding the basic of openstack. but for real scenario should use real hardwares.