![]() ![]() To the Cluster Hat I plugged in four Raspberry Pi Zero W (note leaving the headers off make for a better fit). I was happy to find out that these two pieces of hardware do not use conflicting I2C addresses. ![]() Then I followed the instructions to install a Cluster Hat. This highlights the lower power consumption of the Raspberry Pi 3 compared to the 4 as well. (if you decide to use a Raspberry Pi 4B consider the Pimoroni Fan Shim to keep it cool) To it’s base I added a PiSugar 2 Pro for portable power. ![]() To build my cluster, I started with a Raspberry Pi 3B+. On top of this private network of tiny computers we will install Docker Swarm for some cluster fun. When plugged in, it is NATed so we can do updates and downloads. The basic setup will give us a sequestered network that can be airgaped. Bowl of pumpkin pie toped with ice-cream, wiped cream and butterscotch syrupĬonfiguring the ClusterHat from scratch isn’t overly complex, but I am going to go ahead and use the images furnished as a starting point. Although, I am not sure that would run very long, but it is still cool to be able to have the option to just plug it into it. In theory it could serve up a WiFi access point to a little portable network. … OK, yes, there are plenty of tutorials out there on how to do this, but mine is somewhat special because it is using 8086’s ClusterHat to host four Raspberry Pi Zeros in USB Gadget mode on a Raspberry Pi 3B, powered by a PiSugar2 Pro. So lets setup a CLUSTER OF RASPBERRY PIS! enter… I don’t have any unused hardware laying around that can run VMs. I did not plan for this project so the hardware budget is non-excitant. To have several machines they can be virtual or hardware. There are several routs one can go to set up a lab. Something that can have a network and services but be completely disconnected from your home network and especially be disconnected and air gaped from the Internet. Maybe you want to test that security thing you saw on that thing that time. What if you want to push yourself to the next level? Maybe you want to experiment with some things that are a little sketchy and you dont want it escaping to the Internet. How do you really know how it works if you do not work it? Serverless? Clusters? Linux? The most skilled people in technology are well practiced. ![]()
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