Tags Inventory

This is going to get messy, so I'll keep tabs on the images we're using and the scenarios they're used for here.

Tag	Scenario	Details
4		The starting images, used as a base. Has the red banner on top
5	0	Warmup exercise
6	1	Telemetry demo. Based on :4 but standard front page. No known errors/faults and no Istio config. Some tuning was required to comfortably run the demo. Also an alternative :6-no-header-propagation to demonstrate what happens in Jaeger if you don't propagate headers. NOTE: webapp:6 was retrospectively modified with the ng build --output-hashing=all option, to avoid caching problems in the front end demos
6	2	Demonstration of a weighted canary on a "deep" microservice, using VirtualService and DestinationRule. Two versions of staff service, one returns a "?" image. Reuses the previous images, but with an addition :6-placeholder
6-experimental	3	Demonstrates the need for Istio Ingress Gateway. Also gives a chance to show alternative routing rules