The Rock PI-X have arrived: it is time to build the minicluster! First, let’s assemble a proof-of-concept:

It is time to provision Linux on each node. Well, may be: I could have tested it before, but I just discovered that Rock PI-X can’t be booted via PXE. Therefore, automatic provisioning is impossible and The Foreman is of no use and can be removed …

Rock PI-X with 4Gb RAM and 32Gb SSD cost 75$: at that price, manual OS installation is acceptable.