In this section, we will have a look at the most important service types. Services differ by how they handle traffic and whether they expose Pods externally or internally. The services we will discuss are as follows:
- ClusterIP
- NodePort
- LoadBalancer
- ExternalName
Let's discuss each service in detail:
- ClusterIP: This is a default service that uses an internal ClusterIP to expose Pods. This means that services are not available from outside of the cluster. The use case for ClusterIP is internal communication between microservices within the cluster:
The following is a sample definition of a Service of the ClusterIP type: ...
