Edge data centers

A local alerting engine for sites whose link to the center is unreliable, and the one flag that silently breaks it.

Where the network to the central site is unreliable, run n9e-edge as a local alerting engine so alerts keep firing and keep being delivered through a partition:

n9e-edge --configs etc/edge

Point it at the edge config directory

--configs defaults to etc, which holds the central config.toml. The edge process has its own config at etc/edge/edge.toml — passing etc instead makes it load the wrong file, and the resulting misrouting is silent. Edge also needs its own Redis; it cannot share the one at the center.