Railway IPv4

Guys, does Railway "exports" IPv4 to another service allow its usage permission?
I'm using a Redis service to just allow registered IPs.
If not, someone knows an other service/platform to host Redis db?

You won’t have a static up address from your containers. They are dynamic. So setting something up like that will work today, but may not work tomorrow
It’s better to whitelist a domain instead of the ip if the service you are using allows it

thanks bro