Open standards and APIs. The fact that containers and cloud platforms are largely defined by open standards and open source technologies is the secret sauce that makes all this modularity and orchestration possible, and standardized and documented APIs offer the means of communication between distributed components of a larger application. In theory, anyway, this standardization means that every component should be able to communicate with other components of an application without knowing about their inner workings, or about the inner workings of the various platform layers on which everything operates.
DevOps, agile methodologies, and infrastructure as code. Because cloud-native applications exist as a series of small, discrete units of functionality, cloud-native teams can build and update them using agile philosophies like DevOps, which promotes rapid, iterative CI/CD development. This enables teams to deliver business value more quickly and more reliably.
The virtualized nature of cloud environments also make them great candidates for infrastructure as code (IaC), a practice in which teams use tools like Terraform, Pulumi, and AWS CloudFormation, to manage infrastructure declaratively and version those declarations just like application code. IaC boosts automation, repeatability, and resilience across environments—all big advantages in the cloud world. IaC also goes hand-in-hand with the concept of immutable infrastructure—the idea that, once deployed, infastructure-level entities like virtual machines, containers, or network appliances don’t change, which makes them easier to manage and secure. IaC stores declarative configuration code in version control, which creates an audit log of any changes.