Redis TLS on dedicated port: `too many colons in address`

[mrusme]

Describe the bug

Running Redis with TLS on a dedicated port. Trying to connect to it by using this URI:

rediss://user:pwd@redis.example.org:16379/1

Version

2.2.0

Steps to reproduce

Expected behavior

The datasource should be able to connect.

Actual behavior

getInstance error: dial tcp: address rediss://user:pwd@redis.example.org:16379/1: too many colons in address

However, when using redis-cli the exact same string works.

[mrusme]

Removing user:pwd and using the form fields that Grafana provides doesn't help either, btw. Using only host:port doesn't seem to be possible as it doesn't allow turning on TLS:

getInstance error: read tcp [...]:35404->[...]:16379: read: connection reset by peer