Added support for using existing network stack

[joshiparth1000]

Support for using existing network stack

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• [ ] Parth Joshi

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[towe75]

@joshiparth1000 thank you for your contribution! I will take a closer look within a few days. Maybe you can check PR #116 in the meantime to see if there is some feature overlap with your work? Both branches enhance the drivers network interoperability.

[towe75]

@joshiparth1000 : What about integrating your feature with the existing network_mode driver configuration option. It would build upon the ideas from #116, adding a network_mode=pod:somepod and network_mode=cni:first,second

[joshiparth1000]

Yes, that will work as well. I am up for it.

[shoenig]

As mentioned in #173 Podman is dropping CNI support in v5.