I am not very familiar with docker and wanted to give it a try. I installed docker with all its dependencies on a arm64 device with running Armbian. I just installed docker and nothing else. I do not created any volume, container or anything else!
But now i can see that dockerd and containerd are writing 1-2 gigabytes of data every day on my SD card (with iostat). Is such a behaviour normal? It seems to be a cyclic task or something like that because most of the time once per hour 50-100MB will be written to my SD card. If i uninstall docker again, the excessive disk write operations are gone.
Can someone else confirm this or may be have an idea how i can turn that off?