For now, only DHCP-based networking works for Calico.
There's a difficulty with passing link-scoped routes through cloud-init network config (both nocloud and configdrive), so for now cloud-init sets up DHCP for each CNI-provided network interface. This should also help with persistent roots where cloud-init based network configuration wasn't being updated after re-creating the pod.
The patch is inspired by kubevirt/kubevirt#1436 and removes the old scheme that was making a "fake pod", because it's no longer possible to create such "fake pods" in new versions of Calico (they always must correspond to a real pod).
This PR also renames virtlet-eth0 to eth0, removing compatibility problems with some old CNI Genie versions.
ivan4th
commented
5 years ago
For now, only DHCP-based networking works for Calico. There's a difficulty with passing link-scoped routes through cloud-init network config (both nocloud and configdrive), so for now cloud-init sets up DHCP for each CNI-provided network interface. This should also help with persistent roots where cloud-init based network configuration wasn't being updated after re-creating the pod.
The patch is inspired by kubevirt/kubevirt#1436 and removes the old scheme that was making a "fake pod", because it's no longer possible to create such "fake pods" in new versions of Calico (they always must correspond to a real pod).
This PR also renames virtlet-eth0 to eth0, removing compatibility problems with some old CNI Genie versions.
I didn't test multiple CNI with this PR yet.
This change is