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Description
Description
I think it would be nice to have the ability to set a base address for Ray Dashboard routes.
Use case
We are hosting a number of different ray clusters behind an AWS ALB using path based routing. ALBs don't support url rewriting so when we try to access the Dashboard, it forwards the path along, e.g. /cluster-foo/dashboard, which the dashboard server doesn't recognize as a valid route and returns 404: Not Found. I imagine this could be solved if we could set a base address (similar to ray serve deployments route prefix or the root_path arg to serve.start).