Hi *,
I was wondering how other operators deal with this. Our cloud started somewhere in Kilo or Liberty version and in older versions the option allow_same_net_traffic allowed to control whether instances in our shared network could connect to each other between different projects. That option worked for us but is now deprecated and the Pike release notes [1] state:
Given that there are other better documented and better tested ways to approach this, such as through use of neutron’s native port filtering or security groups, this functionality has been removed.
Users should instead rely on one of these alternatives.
Does that mean all security groups need to be changed in a way that this specific shared network is not reachable? That would be a lot of work if you have many projects. Is there any easier way?
Regards, Eugen