Run NMState within a Docker container on an Ubuntu machine

Objective:

I’m attempting to run nmstate within a container in an Ubuntu machine in this blog (Ubuntu Box info below). I partially succeeded, in that I was able to perform several commands but was unable to patch network configuration changes. Why? Continue reading to find out.

$ uname -a
Linux goglides 5.4.0-72-generic #80~18.04.1-Ubuntu SMP Mon Apr 12 23:26:25 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

NMState

Here is my understanding about NMState after reading a few articles (article references given below in reference section.)

NMState is a library that maintains a host’s network in a declarative manner. Simply said, it’s a networking configuration tool that uses the NetworkManager API to apply the appropriate networking configuration state on a host.

NMState has a number of advantages.

1. Since NMState configure hosts following a declarative approach, it satisfies business demands for host networking management via a northbound declarative API and the tool applies the configuration through a southbound provider.
2. Multiprovider support in the future; presently, NetworkManager is the only provider supported.
3. NMState aids in the enablement of Infrastructure as Code and facilitates networking job automation.
4. It also aids in the reduction of potential human error-related…