fix: add wait to image creation #137
Open
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Description
In our OpenStack environment we had issues where the image that was being built by this plugin was deleted by the end of the process. A colleague narrowed the issue down to the possibility that image hadn't completely finished saving when packer had received the notification that it had saved which caused the VM to be deleted and also the image to be deleted too.
This PR adds a configurable wait to the image saving process in order to allow the underlying processes to finish. In our testing 5 seconds is enough for the image to be saved correctly.
Resolved Issues
If your PR resolves any open issue(s), please indicate them like this so they will be closed when your PR is merged:
Closes #37