Wait for container to be accessible after starting it

lib/vagrant-lxc/action/boot.rb

@@ -1,21 +1,54 @@
 module Vagrant
   module LXC
     module Action
-      # DISCUSS: The Boot action has a different meaning on VB provider and it
-      # assumes the machine has been started already.
       class Boot < BaseAction
         def call(env)
+          @env = env
+
           config = env[:machine].provider_config
 
           # Allows this middleware to be called multiple times. We need to
           # support this as base boxes might have after create scripts which
           # require SSH access
           unless env[:machine].state.running?
+            env[:ui].info I18n.t("vagrant.actions.vm.boot.booting")
             env[:machine].provider.container.start(config)
+            raise Vagrant::Errors::VMFailedToBoot if !wait_for_boot
           end
 
           @app.call env
         end
+
+        # Stolen from on VagrantPlugins::ProviderVirtualBox::Action::Boot
+        def wait_for_boot
+          @env[:ui].info I18n.t("vagrant.actions.vm.boot.waiting")
+
+          @env[:machine].config.ssh.max_tries.to_i.times do |i|
+            if @env[:machine].communicate.ready?
+              @env[:ui].info I18n.t("vagrant.actions.vm.boot.ready")
+              return true
+            end
+
+            # Return true so that the vm_failed_to_boot error doesn't
+            # get shown
+            return true if @env[:interrupted]
+
+            # TODO: Find out if there is a command to check if the machine is
+            #       starting, `lxc-monitor` shows this information, but I've
+            #       never seen it on `lxc-info` which is what it is being used
+            #       to determine container status
+
+            # If the VM is not starting or running, something went wrong
+            # and we need to show a useful error.
+            state = @env[:machine].provider.state.id
+            raise Vagrant::Errors::VMFailedToRun if state != :starting && state != :running
+
+            sleep 2 if !@env["vagrant.test"]
+          end
+
+          @env[:ui].error I18n.t("vagrant.actions.vm.boot.failed")
+          false
+        end
       end
     end
   end