Search the internet for standalone swift object storage or something similar. A ton of results. For example, https://thornelabs.net/2014/07/14/install-a-stand-alone-multi-node-openstack-swift-cluster-with-virtualbox-or-vmware-fusion-and-vagrant.html or https://wiki.openstack.org/wiki/SwiftInstall. Not necessarily 100% up to date, but good enough for a start, I would say.