We have seen that the microservice architecture has many desirable properties from a DevOps point of view. An important goal of DevOps is to place new features in the hands of our user faster. This is a consequence of the greater amount of modularization that microservices provide.

Those who fear that microservices could make life uninteresting by offering a perfect solution without drawbacks can take a sigh of relief, though. Microservices do offer challenges of their own.

We want to be able to deploy new code quickly, but we also want our software to be reliable.

Microservices have more integration points between systems and suffer from a higher possibility of failure than monolithic systems.

Automated testing is very important with DevOps so that the changes we deploy are of good quality and can be relied upon. This is, however, not a solution to the problem of services that suddenly stop working for other reasons. Since we have more running services with...