docker-networking Blog: https://medium.com/@kesaralive/diving-deeper-into-docker-networking-with-docker-compose-737e3b8a3c8c Section 01: The Default Bridge Network (Phobos, Deimos) Section 02: User-Defined Bridge Network (Phobos, Deimos, Mars Network) Section 03: User-Defined Bridge Network (Phobos, Deimos, Mars Network, Moon, Earth Network) Section 04: User-Defined Bridge Network (Nginx Port Mapping) Section 05: Host Network (Nginx Container) Section 06: Host Network (Nginx Container + Volumes)