I have a domain name registered by iwantmyname.com
Using their dashboard, I can update either nameservers or set DNS A/CNAME/etc records.
I deployed a web app listening on port 80 to carina. It was easy! Great.
Now I want to point my domain name there.
I can see the current IP via
$(docker port $container_name 80)"
Is this as simple as making an A record to the value returned by docker port? Is that IP guaranteed to stay the same?