I've updated my unofficial Apache #Mesos fork to version 1.11.0-0.3.0. This update includes the native CNI support for the #docker executer.
It uses the same configuration as the Mesos executor. If you are already using it with CNI, you do not have to make any changes or additions.
Please note that this version of Mesos is unofficial. If you encounter any issues, please refrain from bothering #Apache or the Mesos community. Instead, kindly open an issue: https://github.com/m3scluster/clusterd