Setting up Docker Machine on Raspberry PI.md

#Setting up Docker Machine on Raspberry PI

1. SSH into the pi and install docker with curl -sSL https://get.docker.com | sh (If we let Machine try to install the Docker daemon it will fail.)
2. Change the OS's ID so Docker Machine won't throw errors. sudo nano /etc/os-release and change the line that says ID=raspbian to ID=debian
3. From a new terminal window run docker-machine create --driver generic --generic-ip-address YOUR-PIS-IP --generic-ssh-key ~/.ssh/id_rsa --generic-ssh-user pi --engine-storage-driver overlay2 MACHINE-NAME

@famer

https://docs.docker.com/storage/storagedriver/select-storage-driver/

This page of the documentation provides the relevant information. It seems that overlay2 is simply the best overall storage driver, if I understand correctly this is used for volumes. If you skip this option, a default will be selected in the following list:
"btrfs,zfs,overlay2,aufs,overlay,devicemapper,vfs"
No clue why it failed.