I've installed a highly available dgraph cluster using kubernetes. Now I want to know how to access the dgraph ratel UI. I cannot access it by using master's-ip:8000. In simple words, I need the dgraph-ratel's URL.
The doc you mentioned in the comment says the dgraph-ratel is using port 8000. So after port-forwarding use http://localhost:8000.
You can also access dgraph-ratel from outside the cluster in case you use cloud environment.
Obtain External IP for dgraph-ratel-public service:
kubectl get svc dgraph-ratel-public -o wide
And you can reach dgraph-ratel on the address: http://<External IP>:8000