Tranquility's End by Greg Urbach; ebook

TRANQUILITY’S END
 
In July of 2049, Dr. Thomas McKinsey and a small band of scientists rebelled against the recently installed Congress-In-Council to declare the moon a republic.  Six months later, McKinsey’s followers were dead and he was dying.  With the world below him entering a prolonged global struggle, McKinsey programmed the computers of Tranquility to continue his strategic vision, a plan to establish world unity even at a terrible cost.  As an afterthought, he instructed the machines to raise the colony’s only surviving resident, a baby destined to grow up on an abandoned moonbase with computers as his only companions.
 
In the second book of the Waters of the Moon series, seventeen-year old Grey Waters meets humans for the first time.  Much to his surprise, he likes the Russian cosmonauts, especially Catarina, the attractive female communications officer, but he comes to realize that the goals of the Russian Expedition are in conflict with the colony’s security.  When the Russians insist on reopening the moon, by force if necessary, Grey finds himself caught between his new friends and the computers who rule Tranquility.