Most Schengen representations in Iraq are currently closed or do not issue visas for the time being. According to my information only the French and the Italian Consulates are operational.
Apart from that obtaining a visa is subject to the ordinary rules. I suggest you explore our website for more information depending on the purpose of your visit, which will determine the documents that you will have to provide in order to obtain a Schengen visa :
Schengen visa insurances at the best price