Can I enable Azure Functions when a Traffic Manager failover event occurs?

Question

I have primary and secondary versions of a function app deployed to two different regions for high availability. I have a Traffic Manager profile that sits in front of these apps to monitor endpoint health and direct traffic appropriately.

Two of the functions in the app use non-HTTP triggers, specifically QueueTrigger and TimerTrigger. The problem is that these functions are executing in the secondary region, even when the Traffic Manager is directing all requests to the primary region.

I would like to have both of these functions disabled in secondary, to be enabled only when the Traffic Manager performs a failover upon detecting a problem with primary.

Is this possible?

Answer 1

I don't think it's possible since you're not using HTTP Trigger. Also, even if you failover to the secondary region, it would not have the messages / from the primary region, unless you're copying to both storage accounts. The best you can do (IMHO) is to define the data redundancy as Geo-zone-redundant storage and let Azure handle this for you.