Firstly, install dependencies
sudo pacman -Sy docker
sudo usermod -aG docker "${USER}"
sudo systemctl enable --now docker.service
Next, reboot machine. And after reboot, clone the repo
git clone https://github.com/koompi/vsftpd-docker.git --depth 1
cd vsftpd-docker
Next, start building
DOCKER_BUILDKIT=1 docker build --no-cache --progress=plain -t vsftpd:latest ./
Finally, you will be able to use the image with tag vsftpd:latest
in your docker run