DinD configuration for Gitlab CI with private Docker registry in Sonatype Nexus 3

Question

I have done a setup of my own Gitlab(-p 7022:22, 7080:9080), Gitlab Runner(-p 7093:8093), Sonatype Nexus3(Maven, Docker, Helm)(-p 10081:8081, 10082:10082, 10083:1008