As part of the parent task goal of performing a datacenter switchover, the switchdc scripts must be refactored into a more re-usable automation library and updated to the newer switchover requirements, taking into account also the results of the breakout session at the SRE offsite.
See also Switch_Datacenter on Wikitech for the list of steps to perform (to be updated based on https://etherpad.wikimedia.org/p/switchover-2018-kickoff )