Application servers are dead. At least, that seems to be the message being pushed by most evangelists and even a few enterprise software providers. In their place will rise self-contained microservices, running much the same kind of technology, but now deployed in containers or stand alone applications.
I really like the idea of microservices. They force you to communicate via well-defined interfaces, provide a small surface area for updates and testing, and look really good on a resume. Unfortunately, without a PaaS, I just don’t see how self-contained, self-hosting microservices would actually work in practice.
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