Best way to integrate rhel7/centos7 VMs into the mesh

Hi everyone.

We have an istio mesh on an EKS cluster and we are trying to integrate some virtual machines that run on premise. This works ok with newer VMs, but some VMs run on older Linux version (rhel7 and centos7).
We can’t upgrade this and istio sidecar ( does not run on such OSs because glibc version required is 2.18 and the OS runs with 2.17.

What would be the best way to get this VMs into the mesh?