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nirmata / kube-static-egress-ip

Kubernetes CRD to manage static egress IP addresses for workloads
Apache License 2.0
214 stars 38 forks source link

Support for ipv6-only and later dual-stack #22

Closed uablrek closed 7 months ago

uablrek commented 5 years ago

Ipv6-only is supported in k8s since 1.9, but still in "alpha" (due to lack of e2e testing), but the work with dual-stack is under way and ipv6 should be supported.

Support of ipv6 is not so hard in golang, most network functions are already dual-stack. For kube-static-egress-ip I think it may be possible to be dual-stack compliant right from start. The dual-stack KEP proposes different services for ipv4 and ipv6. kube-static-egress-ip can probably be supporting both depending on the address format. I don't think the CRD have to be altered.

For calls to ip rule/route a -6 parameter must be added but otherwise the calls are similar. ip6tables must be used instead of iptables but otherwise the calls are similar. Ipset is a bit of a problem because different set's must be created that differs in name, e.g. a ipv6: prefix, and note, the ipset names must be <32 characters.

lyyao09 commented 4 years ago

@murali-reddy Any plan to support?