qinqon / ovn-kubevirt Goto Github PK

• Split ovn deployment into control plane and nodes.
• Implement "DEL" supporting live migration
  • Cleanup ovs ports on CNI plugin failure
    • Looks like ovs-cni does not delete them if ovn-kubevirt cni fails
    • This is how ovs-cni does it https://github.com/k8snetworkplumbingwg/ovs-cni/blob/0a5c005cda6e2c6cc02e57953f8959d0af4eab23/pkg/plugin/plugin.go#L433
  • Clean per VM ip policies
• Do create or update for DHCPOptions instead of just create infinite new ones.
• Assign ip address at VM with ovn virtual DHCP
• Add chassis to the lsp using requested-chassis
• Test live migration
  • Address follow logical switch port and VM
  • Connectivity
  • Investigate net.netfilter.nf_conntrack_tcp_loose = 1 for snat + live migration
  • Investigate multi requested-chassis feature for live migration
• Test east/west communication (access to pods on the same namespace).
• Add north/south communication
  • Fix patch port issue
  • Add default gw at "public" logical router pointing to kindnet gateway
  • Add dns server using coredns service "kube-dns" clusterip
    • The host route table is being ignored
• Services
  • After dynamic address is present add an annotation to the pod like the ones from multus for the specified network
  • Change ovn-kubernetes controller to understand k8s.v1.cni.cncf.io/service-network so it get the IP from pod's annotation for this network, it wil then create proper endpoints.
• Isolation/network policies/vlans

learn:

• ovn + dhcp
• Live migration
• How to create an Open Virtual Network distributed gateway router
• http://www.openvswitch.org/support/boston2017/1150-ovn-gateways-ipv6.pdf
• localnet
• Load Balancer https://www.cnblogs.com/yaodd/p/7477848.html
• ovn-kuberntes lb: - https://github.com/ovn-org/ovn-kubernetes/blob/90d77b70b04530763ed2e8e91bf7a268a25caf42/go-controller/pkg/ovn/loadbalancer/loadbalancer.go#L42