Start Vagrant VM and generate SSH config using triggers

Vagrantfile

require Vagrant.source_root.join("plugins/commands/ssh_config/command")

Vagrant.configure(2) do |config|
  config.vm.define "ubuntu" do |ubuntu|
    ubuntu.vm.box = "ubuntu"
    ubuntu.trigger.after :up do |trigger|
      trigger.ruby do |env,machine|
        ssh_template = VagrantPlugins::CommandSSHConfig::Command.new(["--host", machine.name.to_s, machine.name.to_s], env)
        ssh_config = File.join(File.expand_path('~'), '.ssh', 'config.d', machine.name.to_s)
        $stdout = File.new(ssh_config, 'w')
        ssh_template.execute
        $stdout = STDOUT
      end
    end
    ubuntu.trigger.after :destroy do |trigger|
      trigger.ruby do |env,machine|
        ssh_config = File.join(File.expand_path('~'), '.ssh', 'config.d', machine.name.to_s)
        File.delete(ssh_config) if File.exist?(ssh_config)
      end
    end
  end
end