Add support for Azure Traffic Manager
Currently it is not possible to add ACI instances to traffic manager unless we do so individually and add them as "external" endpoints.
Consider adding support for ACI instances in traffic manager. In particular if we could add all instances with tag foo="bar" within a resource group.
It is also prohibitively expensive/complex to use traffic manager with ACI at this time, as:
- Traffic manager endpoints are charged per month not per second.
- ACI forces us to delete and recreate containers.