Generate and provide an SSH config file to shell script being run

lib/vagrant-host-shell/provisioner.rb

@@ -1,21 +1,49 @@
 module VagrantPlugins::HostShell
   class Provisioner < Vagrant.plugin('2', :provisioner)
     def provision
-      result = Vagrant::Util::Subprocess.execute(
-        'bash',
-        '-c',
-        config.inline,
-        :notify => [:stdout, :stderr],
-        :workdir => config.cwd,
-        :env => {PATH: ENV["VAGRANT_OLD_ENV_PATH"]},
-      ) do |io_name, data|
-        @machine.env.ui.info "[#{io_name}] #{data}"
-      end
+      ssh_info = @machine.ssh_info
+      raise Vagrant::Errors::SSHNotReady if ssh_info.nil?
 
-      if config.abort_on_nonzero && !result.exit_code.zero?      
-        raise VagrantPlugins::HostShell::Errors::NonZeroStatusError.new(config.inline, result.exit_code)  
-      end
+      variables = {
+        host_key: machine.name,
+        ssh_host: ssh_info[:host],
+        ssh_port: ssh_info[:port],
+        ssh_user: ssh_info[:username],
+        keys_only: ssh_info[:keys_only],
+        paranoid: ssh_info[:paranoid],
+        private_key_path: ssh_info[:private_key_path],
+        log_level: ssh_info[:log_level],
+        forward_agent: ssh_info[:forward_agent],
+        forward_x11:   ssh_info[:forward_x11],
+        proxy_command: ssh_info[:proxy_command],
+        ssh_command:   ssh_info[:ssh_command],
+        forward_env:   ssh_info[:forward_env],
+      }
+
+      template = "commands/ssh_config/config"
+      ssh_config = Vagrant::Util::TemplateRenderer.render(template, variables)
 
+      Tempfile.open("#{machine.name}") do |f|
+        f.write(ssh_config)
+        f.flush()
+        result = Vagrant::Util::Subprocess.execute(
+          'bash',
+          '-c',
+          config.inline,
+          :notify => [:stdout, :stderr],
+          :workdir => config.cwd,
+          :env => {
+            PATH: ENV["VAGRANT_OLD_ENV_PATH"],
+            VAGRANT_SSH_CONFIGFILE: f.path,
+          },
+        ) do |io_name, data|
+          @machine.env.ui.info "[#{io_name}] #{data}"
+        end
+
+        if config.abort_on_nonzero && !result.exit_code.zero?
+          raise VagrantPlugins::HostShell::Errors::NonZeroStatusError.new(config.inline, result.exit_code)
+        end
+      end
     end
   end
 end