Data Directory
Create directory
sudo mkdir -p /appdata/containerd/
Copy files
sudo rsync -aP /var/lib/containerd/ /appdata/containerd/
Update configuration
sudo sed -i 's/^\(root = \)".*"/\1"\/appdata\/containerd"/' /etc/containerd/config.toml
cat /etc/containerd/config.toml | grep "/appdata/containerd"
Restart service
sudo systemctl restart containerd