Decides, before anything is restored, whether this node may proceed:
refuses a configuration that cannot cluster, refuses active-active while a
capability is missing, joins, and in active-passive mode waits for the
service lease. A request worker attaches to its node instead.
Parameters
theDriver: any
the open store driver
Returns any
a promise of { mode, nodeId }, or { mode: 'off' }; it rejects
with a refusal the service turns into a non-zero exit
Decides, before anything is restored, whether this node may proceed: refuses a configuration that cannot cluster, refuses active-active while a capability is missing, joins, and in active-passive mode waits for the service lease. A request worker attaches to its node instead.