Kubernetes Service Types

2 min
  1. Reminder: what is a Service
  2. Concrete case: NodePort
  3. Implementing a NodePort Service
  4. ClusterIP Service
  5. LoadBalancer Service
  6. Comparative summary

1. Reminder: what is a Kubernetes Service {#1-rappel}

Kubernetes Services enable communication between the components of an application:

  • Frontend to Backend: users reach the frontend
  • Backend to Database: the backend talks to the DB
  • Loose coupling: microservices stay independent
Users --> [Frontend Service] --> [Backend Service] --> [DB Service]

Roles of Services

RoleDescription
Network abstractionStable IP despite ephemeral pods
Load BalancingTraffic distribution between pods
Service DiscoveryAutomatic discovery of resources
External exposureAccess from outside the cluster

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This lesson is part of the “Kubernetes Suite” module

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