When I hear or read about "microservices", I always have some articles from Martin Fowler in my head (among others):
* http://martinfowler.com/articles/distributed-objects-microse... and http://martinfowler.com/bliki/MicroservicePrerequisites.html (IMO both a very important read)
I think most people are running into the issue, that they think "microservices" are something new and hip and they don't have a clue on how to break down problems a meaningful way.
PS: Another VERY interesting read, and also maybe a bit unrelated to container hosting is "Testing Strategies in a Microservice Architecture": http://martinfowler.com/articles/microservice-testing/. I'd love to hear some more thoughts about that and how services like giantswarm could help with that...