LoadBalancer

Table of contents

  1. What is LoadBalancer
  2. Loadbalancer Service creating

What is LoadBalancer

LoadBalancer - Service type wich have its own unique, publicly accessible IP address and will redirect all connections to your service. You can thus access your service through the load balancer’s IP address.

Loadbalancer Service creating

We can create LoadBalancer Service with two ways:

1) Create a yaml file called for example kube-svc.yaml with the following listing’s contents:

apiVersion: v1
kind: Service
metadata:
  name: kube-svc
spec:
  type: LoadBalancer 
  ports:
    - port: 80
      targetPort: 8080
  selector:
    app: kube

Use kubectl create -f kube-svc.yaml command to create LoadBalancer Service.

2) If you already created Service you can edit it with command:

  • kubectl edit svc kube-svc.

Make nessesary changes and saved. It will be automatically applyed to your cluster.

Now you can list all Service resources in your namespace and see that an internal cluster IP has been assigned to your service. To see it use the command:

  • kubectl get scv

Now we can use command: kubectl describe svc kube-svc to see LoadBalancer type in our Service’s details.