I’m getting started with Kubernetes, Knative and Gloo. My goal is to deploy a simple http service to a gke cluster. I’ve managed to setup knative, gloo and deploy a healthy service there named backend. Next step is to setup routing /api/v1 -> backend. I’ve created a virtualservice named public-api, now I need to add a route. According to docs, I need to run

glooctl add route \
    --path-exact /api/v1 \
    --dest-name ???dest-name??? \
    --prefix-rewrite /

And I’m confused. I suppose this would be easier if I just installed plain gloo on plain gke. But with Knative I see four upstreams:

| mb-backend-bdtr2-4tdfq-9090                             | Kubernetes | Accepted | svc name:                      |
|                                                         |            |          | backend-bdtr2-4tdfq            |
|                                                         |            |          | svc namespace: mb              |
|                                                         |            |          | port:          9090            |
|                                                         |            |          |                                |
| mb-backend-bdtr2-4tdfq-9091                             | Kubernetes | Accepted | svc name:                      |
|                                                         |            |          | backend-bdtr2-4tdfq            |
|                                                         |            |          | svc namespace: mb              |
|                                                         |            |          | port:          9091            |
|                                                         |            |          |                                |
| mb-backend-bdtr2-80                                     | Kubernetes | Accepted | svc name:      backend-bdtr2   |
|                                                         |            |          | svc namespace: mb              |
|                                                         |            |          | port:          80              |
|                                                         |            |          |                                |
| mb-backend-bdtr2-zz6t9-80                               | Kubernetes | Accepted | svc name:                      |
|                                                         |            |          | backend-bdtr2-zz6t9            |
|                                                         |            |          | svc namespace: mb              |
|                                                         |            |          | port:          80              |

I have four questions:

1. which one to use? mb-backend-bdtr2-80 or mb-backend-bdtr2-zz6t9-80
2. why do I have two upstreams with port 80?
3. what are these upstreams with ports 9090 and 9091?
4. how can I define more descriptive names? Gloo’s system upstreams are named nicer without any postfix.