Introduction to DevOps

Over the past few years, the software delivery cycle has been moving increasingly fast, while at the same time application deployment has become more and more complicated. This increases the workload of all roles involved in the release cycle, including software developers, Quality Assurance (QA) teams, and IT operators. In order to deal with rapidly-changing software systems, a new concept called DevOps was introduced in 2009, which is dedicated to helping the whole software delivery pipeline evolve in order to make it faster and more robust.

This chapter covers the following topics:

• How has the software delivery methodology changed?
• What is a microservices architecture? Why do people choose to adopt this architecture?
• What is DevOps? How can it make software systems more resilient?