Cluster Hat with Docker Swarm

“What are you using it for?” “To learn!” should be your stock response. I purchased the Clusterhat a while back as a scaled down version of FrankenPi although given the age of FrankenPi the scale of Clusterhat has more to do with physical size than computing ability. To be honest I suspect Clusterhat is as…

Upgrade docker 17.06.1-ce

Some of you may be aware I run a RaspberryPi cluster called FrankenPi I’ve been running a Docker swarm on it originally with four Pi’s but last year added two more.  The original four Pi’s were all running Engine 18.6.1-ce but somehow when I added the two new Pi’s they were running Engine 17.06.1-ce while…