Vagrant.configure("2") do |config| config.vm.box = "ubuntu/bionic64" config.vm.network "private_network", ip: "192.168.50.50" config.vm.network "forwarded_port", guest: 8000, host: 8000 config.vm.provision "shell" do |s| ssh_pub_key = File.readlines("#{Dir.home}/.ssh/id_rsa.pub").first.strip s.inline = <<-SHELL echo #{ssh_pub_key} >> /home/vagrant/.ssh/authorized_keys echo #{ssh_pub_key} >> /root/.ssh/authorized_keys curl -fsSL https://crystal-lang.org/install.sh | sudo bash SHELL end config.vm.provider "virtualbox" do |v| v.memory = 2048 v.cpus = 1 end end