Can't access compose container port on localhost in Gitlab CI about docker-with-compose

[blevine]

Thanks. I actually figured out a solution using Docker-in-Docker (dind) running as a gitlab-ci "service". The Keycloak server is then addressable using the dind container's hostname which I've aliased to "dind". So http://dind:8080 instead of http://localhost:8080

[tiangolo]

The localhost inside of the Docker Compose container is going to refer to the same container, you won't be able to connect to something else running on the host machine.

If you can, for example, put that on a domain, then you can curl that domain.