This PS reduces the number of processes spawned by services, as
with Kubernetes load distribution can be better managed by a larger
number of single threaded pods (up to a certain point) and doing so
also provides both increased avilibility, leading to smoother rolling
updates. In addtion when running single replicas resource consuption
is reduced.
Change-Id: Ifb7494a0804913d843a072e10d26c6ec53c3bd16
02767f6d76