I live in an apartment (Paris region, to get an idea of the climate) and my datacenter is located on the top shelf of a cupboard. The main server is an old tow

I live in an apartment (Paris region, to get an idea of the climate) and my datacenter is located on the top shelf of a cupboard. The main server is an old tower, ca. 6 years old. It costed 600€ at that time: a Skylake processor and 12 GB RAM. I use it to run about 20 services via docker (it includes the ones you mentioned). It is more than enough. I used to have a small PC (chinese, bought on Aliexpress for about 150€ I think) to run Pihole (filtering, DHCP, DNS) but I moved it to my Internet box (yes, we have internet boxes that allow you to run VMs on them). This with a Cisco switch, a Ubiquity AP and a UPS. Total power is 60W, the temperature is around 35°C.