Sidecar Design Pattern Short Tutorial for Microservices with Example for Beginners

In this video we will learn about Sidecar design pattern. This is the 6th design principle in Decomposition design pattern category for microservices.

This pattern is named Sidecar because it resembles a sidecar attached to a motorcycle. In the pattern, the sidecar is attached to a parent application and provides supporting features for the application. Deploy components of an application into a separate process or container to provide isolation and encapsulation. Sidecar pattern is about separating cross-cutting operations to reduce its complexity of services.

For example, there are several modules that we want to run for each Microservice like logging, messaging, monitoring etc.
This pattern can also enable applications to be composed of heterogeneous components and technologies. The sidecar also shares the same lifecycle as the parent application, being created and retired alongside the parent. As a sidecar is attached to a motorcycle, similarly in software architecture a sidecar is attached to a parent application and extends/enhances its functionalities. A sidecar is loosely coupled with the main application. The sidecar pattern is often used with containers and referred to as a sidecar container or sidekick container.

Co-locate a cohesive set of tasks with the primary application, but place them inside their own process or container, providing a homogeneous interface for platform services across languages. A sidecar service is not necessarily part of the application, but is connected to it. It goes wherever the parent application goes. Sidecars are supporting processes or services that are deployed with the primary application. In microservice architecture, it’s very common to have multiple services/apps often require common functionalities like logging, configuration, monitoring & networking services. These functionalities can be implemented and run as a separate service within the same container or in a separate container.

** Topics Covered **
1. Introduction to Sidecar design pattern
2. Agenda of this video
3. Understanding Sidecar design pattern
4. Real world examples of Sidecar design pattern
5. Usage of Sidecar design pattern
6. Advantages of Sidecar design pattern

#microservicedesignpatterns #sidecar #microservices

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7. Summary of Sidecar design pattern
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