'Scale to default structure based on release type'

def _default_scale(self, user, release):

    if (not release.build.sha):
        structure = {u'cmd': 1}
    elif (release.build.dockerfile and (not release.build.procfile)):
        structure = {u'cmd': 1}
    elif (release.build.procfile and (u'web' not in release.build.procfile)):
        structure = {u'cmd': 1}
    else:
        structure = {u'web': 1}
    self.scale(user, structure)
