How to attract specific PODs to same ENI

[irfanjs]

Hello,

Use case
we have use case wherein , we need to attract few PODs to specific ENI . This is to achieve low latency and better network connectivity because these PIODs are tightly coupled with each other. They communicate with each other very often

we would like to know , whether multus-cni plugin supports this ?
if yes, any example would be highly appreciated

Thanks

[irfanjs]

Please suggest .

[juliusmh]

Hi there, pod's can't attract ENIs. Pod's are scheduled on nodes (ec2 instances), and ENIs are attached to nodes. You need to ensure that

• the ENI is attached to a node
• the pod is scheduled on that same node

Only then multus can make use of that ENI, e.g. using host-local plugin. Multus alone can't achieve what you're asking for. You either implement the above using standard k8s tools or use a CNI that supports working with ENIs directly.

[irfanjs]

1. the ENI is attached to a node
2. the pod is scheduled on that same node

above points are already implemented .
can multus help us now to attract PODs on same ENI ? we are looking for low latency between PODs which are on same ENI ? can this be achieved ?