By the way, having the same IP address for several containers, how will be
possible to do container migration ?
It depends on the circumstances. In general having several containers with the
same IP address is a bad idea. But if you have a setup where you can
do it safely there is nothing preventing that setup from working between
machines, so it is neither a positive or a negative from a migration standpoint.
What about the clients connected to the different containers ? For
example, you have 100 containers, all are configured with 192.168.1.100
and have an application binded to INADDR_ANY:80.
In front of that, you have 100 clients. Each of them are connected to
the application running in each container.
One container is migrated to another machine on the network, it is not
possible to keep the same address, so the address is changed to
192.168.1.200. The clients connected to 192.168.1.100 will lose the
communication.
--Daniel
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