I have an interesting scenario where I have to develop a workflow for an SP2013/O365 environment, but it has to be an SP2010 workflow, because Azure is not supported / allowed. This is a new workflow, not a legacy one being migrated to 2013.
How can I go about doing this? Is it possible to do in VS2012? Even if I made the first step of the workflow the "Start 2010 WF" action, is that already using the Azure service bus? Are SP2010 workflow actions available in VS2012?
Would I have to develop a 2010 workflow in VS2010, and then import the workflow into VS2012? Can this then be deployed as an integrated workflow app? If not, how can I deploy it to the site that needs it?
Am I going to be stuck with doing it all in Designer? (Please tell me no...)
Edit to add: I just want to make it clear that deploying a farm solution is not an option. This is for SharePoint 2013 online, not on-premises.