Groups of these pods are markers for your services. Accordingly, Kubernetes will terminate or create new pods to ensure a service remains in working order as user activity and resource consumption fluctuate. The pod lifecycle complicates service discovery a bit when it comes to deployments. Pods thus play critical roles in giving your infrastructure purpose. Additionally, containers housing application-specific software packages reside within those pods. These pods are the smallest deployable objects available in the Kubernetes system and carry out core processes that make your applications function. Technically speaking, a Kubernetes service defines a set of pods and outlines methods for accessing them during runtime. Devices do this service discovery work in the background once a request is made. Furthermore, API-based microservices are known for their two-way communicability, where two or more services talk to each other during runtime. Users and admins alike make requests to containerized services on a regular basis. What Is Service Discovery?Īs we’ve touched on, service discovery is the process of locating a service, once it’s determined that said service is integral to completing tasks within an application. In this guide, we’ll explain the ins and outs of Kubernetes service discovery, and why it’s important to you. Familiarizing yourself with these mechanisms will make you a better Kubernetes administrator. Pointing to the correct location is therefore crucial while attempting to access that service. Because a containerized service runs using numerous instances (or virtual copies) of itself, that service now “lives” in several locations:Įach is essentially a network endpoint with its own port or IP address. This is trickier, however, than it sounds. Accordingly, service discovery describes the process of connecting to a given service within your ecosystem. Communication and visibility are absolutely crucial in a Kubernetes system. However, DevOps teams can’t hope to run a tight ship without managing their services. These objects running within pods and containers, by extension, are RESTful since they’re based on APIs. A fundamental element of the Kubernetes microservices system is the services model, which gives teams greater understanding of how their applications are deployed.

What is kubernetes service