Running Interactsh ephemerally / on demand

[Bwvolleyball]

Please describe your feature request:

Add the ability / option to persist runtime state (certificates, DNS names, static IP addresses, hits) externally

Describe the use case of this feature:

In a situation where a user wants to run interactsh as an on demand or scale-to-0 application, having all runtime state persisted externally (to an external cache such, or to an external file system for certificates), would allow for running interactsh on Kubernetes / Knative and allow for quick and consistent reboots of interactsh, in the event the application is scaled down between runs, or a pod died and was rescheduled.

[MetzinAround]

Closing 1.5 year old issue. Feel free to reopen if needed.