When running in a cloud provider, a LoadBalancer service type triggers the provisioning of an external load balancer which distributes traffic amongst the backing Pod s. To see this in action, let’s deploy an application on Azure Kubernetes Service and expose it using a LoadBalancer service.

This document explains what happens to the source IP of packets sent to different types of Services, and how … Run two instances of a Hello World application. Exposing pod as a NodePort service I recently started building Kubernetes cluster in my on-prem network where I do not have OpenStack or OpenShift that can provide me load balancer IP. The downside of this approach is two fold: You are back to dealing with port-management. Access from a node or pod in the cluster. Create a Service object that exposes a node port. 1. kubernetes-dashboard is a service file which provides dash-board functionality, to edit this we need to edit dashboard service and change service “type” from ClusterIP to NodePort: Although NodePort is conceptually quite simple, here are a few points you should note. Use the Service object to access the running application. Run a pod, and then connect to a shell in it using kubectl exec. NodePort — this will expose a port on each of your hosts that you can use to reach your service. Following is an alternative workaround to access Dashboard externally. ; LoadBalancer Using Source IP Applications running in a Kubernetes cluster find and communicate with each other, and the outside world, through the Service abstraction.

Connect to other nodes, pods, and services from that shell. LoadBalancer. Some clusters may … the random port allocation is restricted to range — 30000–32767 the port is the same for every node in the cluster; it is possible to specify a static port number, but the Service creation might fail for reasons like port allocation, invalid port, etc. Most cloud platforms have load balancer logic already written that can provision IP address upon service …