Next line returns 200 as status https://github.com/Kong/kong/blob/c817fada7a514d84f6e0aab7461605c71bf3a841/kong/plugins/cors/handler.lua#L13

Internet says it should return 204:

• https://developer.mozilla.org/en-US/docs/Glossary/Preflight_request
• https://docs.microsoft.com/en-us/aspnet/core/security/cors?view=aspnetcore-3.1#preflight-requests

Internet changed its mind since 2018 https://

kubernetes.github.io/ingress-nginx/deploy does not list microk8s.
Microk8s addon ingress does not specify an ingress and not documented. Would be nice to use Kubernetes/ingress-nginx.
Possible to add installation instructions for this platform?

here is the current list, it is not easy to read.

Since maxmind no longer provides the legacy GeoIP databases could it might be possible to update the nxtool to use GeoIP2?

Percona is quite strict on having primary keys on all tables (and rightly so).
Please add primary keys to all tables, even if it's just an auto-increment.

It's mostly just the following tables:
authentication_logs (could just get a auto-increment primary key added)
identity_verification_tokens (could just set the token as primary key)

In lieu of #283, implement Stackdriver Canary Analysis for use in GKE.