How to properly communicate microservices across domains?

Question

System administration

There are three containers nginx, php-fpm, mysql managed via docker compose v3. php-fpm serves several services just like nginx.
Let's say there are three services available on the host machine at the addresses service1.local, service2.local and service3.local which all lead to one container with nginx which in turn processes php through php-fpm. When requesting service1.local, requests must be made on the php backend side via curl to service2.local and service 3.local services by domains. How to actually do this without crutches like assigning a permanent nginx IP and prescribing domains using extra_hosts?

Answer 1

Maybe service discovery in the form of HashiCorp Consul will help you?