Customfile to share specific host key auth with Vagrant VM.

Customfile

# -*- mode: ruby -*-
# vi: set ft=ruby ts=2 sw=2 et:

# Add github to known hosts for private repo provisioners
config.vm.provision "shell", run: "always" do |s|
  s.inline = <<-SHELL
    mkdir -p ~/.ssh
    chmod 700 ~/.ssh
    touch ~/.ssh/known_hosts
    if ! grep -Fxq "github.com" ~/.ssh/known_hosts; then
      ssh-keyscan -t dsa,rsa github.com >> ~/.ssh/known_hosts 2>/dev/null
      echo "Success: Added host to SSH known_hosts for user 'root': github.com"
    fi
  SHELL
end