Distributed services have indeed revolutionized the design and deployment of applications in the modern world of cloud-native architecture: flexibility, scalability, and resilience are provided by these autonomous, loosely coupled services. This also means that services add complexity to our systems, especially with cross-cutting concerns such as logging, monitoring, security, and configuration. As a fundamental design concept, the sidecar pattern enhances the distributed architecture in a seamless and scalable manner.
Throughout this article, we explore what the sidecar pattern offers, its use cases, and why it has become so widely used in cloud-native environments.