As an operator, when I am running a setup with two network nodes, the
idea of running L3 HA is that an outage of one of the network nodes
should have minimum customer impact. With the current rules in place,
existing setups will indeed have little to no impact, but customers will
not be able to create new routers during the outage.
With this chance in place, we can set min_l3_agents_per_router=1, so the
customers will be affected even less. New routers will be created with
just one instance, which certainly is not optimal, but at least will
fulfill the customer request. Once the second network node recovers, the
second router instance will be added and thus redundancy restored.
Also change the help text to specify the effect of setting
min_l3_agents_per_router more clearly.
Conflicts:
neutron/db/l3_hamode_db.py
neutron/extensions/l3_ext_ha_mode.py
Closes-Bug: 1555042
Change-Id: I8a5fc74a96c784d474aefe2d9b27eeb66521ca82
(cherry picked from commit ab131ee0af)
412ba9f121