Cannot 'resume' while instance is in vm_state active

[f2brossi]

after > vagrant suspend

try quickly > vagrant resume

Then actually vagrant return
==> test: Resuming suspended VM...
Cannot 'resume' while instance is in vm_state active

Would be nice to indicate that the vm is suspending and so the action cannot be performed.

[f2brossi]

With nova api v2 extensions and v2.1 ( experimental ) we have the transition task_state to suspending and so we indicate to the user that the action cannot be performed.

see issue #89

[f2brossi]

Proposal for methods resume/suspend in action.rb, according to http://docs.openstack.org/developer/nova/devref/vmstates.html

     # This is the action that is primarily responsible for suspending
      # the virtual machine..
      # When machine_state_id != "active" there are two cases:
      #  - A task is ongoing  and so the vm can not be suspended.
      #  - No task is ongoing and vm_state is not "active". In that case
      # the vm can not be suspended except when vm_state == "resumed".
      def self.action_suspend
        new_builder.tap do |b|
          b.use ConfigValidate
          b.use ConnectOpenstack
          b.use Call, ReadState do |env, b2|
            if env[:machine_state_id] == :not_created
              b2.use Message, I18n.t('vagrant_openstack.not_created')
            elsif env[:machine_state_id] == :suspended
              b2.use Message, I18n.t('vagrant_openstack.already_suspended')
            elsif env[:machine_state_id] != :active && env[:machine_state_id] != :resumed
              b2.use Message, I18n.t('vagrant_openstack.ongoing_task_or_not_resumed')
            else
              b2.use Suspend
            end
          end
        end
      end

      # This is the action that is primarily responsible for resuming
      # suspended machines.
      # When machine_state_id != "active" there are two cases:
      #  - A task is ongoing  and so the vm can not be suspended.
      #  - No task is ongoing and vm_state is not "active". In that case
      # the vm can not be suspended except when vm_state == "suspended".
      def self.action_resume
        new_builder.tap do |b|
          b.use ConfigValidate
          b.use ConnectOpenstack
          b.use Call, ReadState do |env, b2|
            if env[:machine_state_id] == :not_created
              b2.use Message, I18n.t('vagrant_openstack.not_created')
            elsif env[:machine_state_id] == :resumed
              b2.use Message, I18n.t('vagrant_openstack.already_resumed')
            elsif  ! ( env[:machine_state_id] == :active  || env[:machine_state_id] == :suspended )
              b2.use Message, I18n.t('vagrant_openstack.ongoing_task_or_not_suspended')
            else
              b2.use Resume
            end
          end
        end
      end