How do You Define A Kubernetes Service?
In the kubernetes cluster, there are no.of objects which are having there own use cases and individual advantages. Same way service is part of objects which are present in kubernetes. To create an object or operate an object you can use the kubectl tool.
Example
apiVersion: v1
kind: Service
metadata:
name: deployment-service
spec:
selector:
Tomcat: deploymentapp
ports:
- protocol: TCP
port: 80
targetPort: 8080
In the above we are exposing the Tomcat application deployed in the kubernetes cluster with labels of Tomcat: deployment app port: 80 is the port exposed internally in the cluster and port 8080 is the port of the Tomcat application.
What are Kubernetes Services? | Complete Guide
In Kubernetes, each pod is assigned its IP address but the pods are ephemeral that is they can be destroyed easily and when a new pod is created in place of them a new IP address is assigned to them. Here the role of services comes into the picture. A service is like a permanent IP address assigned to a pod. A service IP address is stable. So instead of sending a request to a pod, the client requests a service, and the service forwards that request to the desired pod. Services also help in load-balancing.
Table of Content
- What Are Services in Kubernetes?
- How do Kubernetes Service Work?
- How do You Define A Kubernetes Service?
- Port Definitions
- Services Without Selectors
- EndpointSlices
- Application Protocol
- Multi-Port Services
- Load Balancers With Mixed Protocol Types
- Choosing Your Own IP Address
- Choosing Your Own Port
- Types of Services
- How do You Access A Kubernetes Service? A Step-By-Step Guide
- Headless Services
- How to Create and Use A Kubernetes Service to Expose Your Application?: A Step-By-Step Guide
- What are the Differences between Kubernetes Service vs pod?
- What are the Differences between a Service and a Deployment?
- What are the Differences of Docker Service and Kubernetes Service?
- Discovering services
- Kubernetes Service – FAQs