Session affinity with a fixed value for the defined cookie name

[ta924]

Describe the feature

For a deployment running canary in a single region the randomly generated value for the canary/primary would work as expected. But for an application running canary in two or more regions, requests with region 1 could be routed to region 2. This would result in the request hitting the canary on region 1 first, then possibly going to the canary on region 2. The proposal is to give the ability to define a static value for the cookie so requests could be region agnostic.

Proposed solution

Ability to define a static value for session affinity cookie

Any alternatives you've considered?