Kevin Goldsmith talked about how Spotify uses microservices to break down architectures and be innovative at the GOTO Berlin 2015 conference. He argues that Microservices are easier to test, deploy and monitor than monolithic applications. Spotify also aims to have as few as possible dependencies in their product, and microservices are very helpful for that.
At QCon London 2015 Phil Calcado shared lessons learnt from SoundCloud’s move from a monolithic to microservices architecture, and stated that the core requirements for building a microservice platform include developing capabilities for rapid provisioning, basic monitoring and rapid application deployment.
Tumblr have released Genesis, an open source tool for data center automation that consolidates the process of discovering new machines, reporting hardware details to Tumblr’s Collins inventory management system, and providing a mechanism to perform hardware configuration.
Immutable servers provide extreme levels of control over system state, however this can require fundamental changes in the views of systems, patterns, deployments, application code, and team structure as Chad Fowler, CTO of 6wunderlist.com, writes in his recent blog post "Trash Your Servers and Burn Your Code: Immutable Infrastructure and Disposable Components".