Functionally a microservice is going to resemble an end point that one could easily build with Dancer, for instance, but to quote IBM: "...given the massive increase in complexity, moving parts and dependencies that come with microservices, it would be unwise to approach microservices without significant investments in deployment, monitoring and lifecycle automation..."

For the issues depicted above I think you might want to take a look at Myriad on CPAN which looks like it addresses them.