How is this NOT discrimination?

According to this story, The Department of the Navy going to be practicing promotions based upon a candidate's race (among other things).

The message, sent to a list of other flag officers, notes that "a change in focus of this year's diversity brief is the desire to identify our key performers (by name) and provide insight on each of them." Chief of Naval Operations Adm. Gary Roughead, who apparently originated this order, "is interested in who are the diverse officers with high potential and what is the plan for their career progression. He may ask what is being done within to ensure they are considered for key follow on billets within the Navy."

I thought this was going to be the "post-racial" administration?