Multiple containers example based on this project.
Updated to work with ResinOS v2+ running dnsmasq and Docker bridge on 10.114.101.1/24.
Tested on Intel NUC and QEMU devices (x86_64).
The application starts a docker-in-docker instance and runs docker-compose. docker-compose then builds and runs the containers.
You can edit docker-compose.yml to add the containers you need.
For docker in docker, check jpetazzo/dind.