Too bad K8S doesn't support IPv6 at all.
https://github.com/kubernetes/enhancements/issues/563
It was supposed to be targeting 1.16, but looks like it will be in 1.17 according to https://github.com/kubernetes/enhancements/issues/508#issuec...
Alpha level cluster in GKE gets wiped every 30 days, nothing you want to run any production workload on.
Of course you have the option of self-hosting..