import haproxy template

Change-Id: I74c8fee4a18489b03218baeadc895e563aa347fe
customize template

Change-Id: I6d4d531e412d87e3ccf2a4b7ac464ac197b3831b
allow multiple delayed_job processes

Change-Id: I9699a500e6c231b37beabd951aaed2773a10b74d