I haven't written a blog, but I do have a 5 node RaspberryPi cluster running Docker Swarm. The docker stacks and compose files are on GitHub https://github.com/jmb12686/raspi-docker-stacks
Look at the 'gluster' branch for my current active work on clustered persistent storage using SSDs and docker volume plugins.
I have setup quite a few GitHub projects for building / publishing multiarchitecture ARM compatible images of open source projects (Elasticsearch, Kibana, CAdvisor, etc). Check them out if interested in running common tools on RaspberryPis.
Look at the 'gluster' branch for my current active work on clustered persistent storage using SSDs and docker volume plugins.
I have setup quite a few GitHub projects for building / publishing multiarchitecture ARM compatible images of open source projects (Elasticsearch, Kibana, CAdvisor, etc). Check them out if interested in running common tools on RaspberryPis.