Traefik is edge router routing Nginx reverse proxy to host multiple domains and apps on a single VPS. Treafik also serves as load balancer.
see guide at https://medium.com/@containeroo/traefik-2-2-docker-global-entrypoint-configuration-ff11d7f84913
File structure:
/opt/containers/
+-- traefik
| +-- docker-compose.yml //
| +-- data
| | +-- traefik.yml //
| | +-- config.yml //
| | +-- acme.json //
+-- portainer
| +-- docker-compose.yml //
+-- netdata
| +-- docker-compose.yml //
+-- wordpress
| +-- docker-compose.yml //