I'm trying to secure some microservices environments. The problem is about distributed services, because some of them are SaaS products or in different clouds, serverless, PaaS, Kubernetes and so on.. and they're interconnected.
Years ago, it was possible to restrict the IP(s) in the firewall on the edge or in the balancer or proxy. However, in cloud environments looks a cumbersome task to filter all the microservices. It seems complicated to maintain the restrictions for all.
how do you all protect staging environments in distributed services (microservices)? Appart from the IP filter are there other approaches?
Thanks!
