Disciplina ("discipline"). Also known as Discipulina, a roman goddess of of orderly conduct used for propaganda purposes in the later empire to help maintain order within the legions. The earliest dedication to this goddess appears to be an inscription on the altar found at Chesters, Hadrian's Wall, England. Here the dedication was to the discipline of the Emperor Hadrian and dates to his reign (117 - 138). Dedications were more usually "Disciplina Augusti" or "Discipulinae Augusti" ("to the discipline of the Emperor"). Disciplina was portrayed on coins during the latter part of Hadrian's reign, and dedications are known from various parts of the empire where troops were stationed. Eight dedications are known from Britain and seven North Africa. - Dictionary of Roman Religion. Adkins and Adkins.
I don't think Discliplina was a real goddess per se, more like a deified virtue along the lines of Peace or Concord, used to inspire servants of the empire and reinforce the ruler cult. The fact that there are only a few dedications known, all of them military, seem to enforce that view.
I doubt you'll find much more than what the Adkins managed to dredge up.