NOT WORKING!

• Hostname: hassio
• Template: debian-10-standard..
• Root Disk:
  • Storage: local-zfs
  • Disk size (GiB): 2
  • Mount optionas: noatime
• CPU: 1
• Memory:
  • Memory (MiB): 512
  • Swap (MiB): 512

• Unprivileged container: Yes
• Features: Nesting, keyctl (needed to run Docker in unprivileged container)

Docker cannot use features of ZFS filesystem and it failsback to very inefficient vfs storage driver. To workaround, Docker needs well supported filesystem.

• Add
  • Mountpoint
    • Storage: local (DIR type storage, to emulate any block device in file)
    • Disk size (GiB): 2
    • Path: /var/lib/docker
    • Mount options: noatime

Modify CT config:

lxc.cgroup.devices.allow: a
lxc.cap.drop:

apt-get update && apt-get dist-upgrade
reboot
 
apt-get install curl network-manager apparmor jq
curl -sSL https://get.docker.com | bash 
 
# Downgrade docker
apt-get install docker-ce=5:18.09.9~3-0~debian-buster
apt-get install docker-ce-cli=5:18.09.9~3-0~debian-buster
echo "docker-ce hold" | dpkg --set-selections
echo "docker-ce-cli hold" | dpkg --set-selections

curl -sL https://raw.githubusercontent.com/home-assistant/supervised-installer/master/installer.sh | bash -s -- -m qemux86-64

apt-get install docker-ce=5:18.09.9~3-0~debian-buster
apt-get install docker-ce-cli=5:18.09.9~3-0~debian-buster
echo "docker-ce hold" | dpkg --set-selections
echo "docker-ce-cli hold" | dpkg --set-selections