Upstash prodived Redis URL not reachable from buildpack?

Trying to connect an Elixir app to a provided Redis URL from But I get an :nxdomain error when I try to deploy (and connect to it). Any ideas, maybe missing config in the fly.toml?

The Redis URL resolves to an internal IPv6 address, so your app and Redis client need to be configured to support that. Check our this thread for more info: nxdomain for Elixir app

Found it here:

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Great! Was the problem that Redis was deployed in a different organization?

No, they were in the same org. But somehow having two regions allowed the second deploy to connect and the canary to pass and roll it.