Buildkit enable docker

ubuntu.txt

inside /etc/docker/daemon.json

{
   "log-driver": "json-file",
   "log-opts": {
      "max-size": "100m",
      "max-file": "20"
   },
   "features": {
      "buildkit": true
   }
}

then restart docker service

sudo systemctl daemon-reload
sudo systemctl restart docker

reference: https://pythonspeed.com/articles/docker-buildkit