WHAT IS KUBERNETES PORT FULL
WHAT IS KUBERNETES PORT WINDOWS

You will see a lot of ESTABLISHED network connections belonging to etcd and kube-apiserver.įirst I try to reboot the whole instance.

It shows additionally PID/Program name column in which you can see by which program specific connection was established. If you run: sudo netstat -ntp # important: it must be run as superuser Basically closing established network connections is responsibility of the application which creates them and it looks like for some reason minikube is not terminating them. It looks like those connections indeed belong to various components of kubernetes, but for some reason are not terminated. I've reproduced it on Minikube on my linux instance and noticed exactly the same behaviour, but it looks like the ESTABLISHED connections are showing only after successfull minikube stop. Most probably kubernetes entry in /etc/hosts is mapped to one of them. Then you can compare them with your network interfaces addresses (run ip -4 a). To make it clearer you may cat the content of your /etc/hosts file and look for the entry kubernetes. Basically it has nothing to do with running kubernetes cluster. Maybe the one on top of which you ran your minikube you called kubernetes and that's why this hostname appears currently in your active network connections. Kubernetes in your case is nothing more than hostname of one of your machines/VMs/instances. Tcp 0 0 localhost:40600 localhost:8443 ESTABLISHED Tcp 0 0 localhost:2379 localhost:45388 ESTABLISHED Tcp 0 0 localhost:45414 localhost:2379 ESTABLISHED Tcp 0 0 localhost:2379 localhost:45300 ESTABLISHED Tcp 0 0 localhost:45324 localhost:2379 ESTABLISHED you will see many established connections with both local and foreign addresses set to localhost: tcp 0 0 localhost:45402 localhost:2379 ESTABLISHED Keep in mind that in Linux or other nix-based systems it is totally normal that many processes use network sockets to communicate between each other e.g. OK, it looks like your minikube instance is definitely deleted. So what actually happens is there are connections from localhost to localhost ( netstat -b will show apps that create them). With this, netstat will print: Proto Local Address Foreign Address State It says kubernetes and that is what you see in the console. When netstat renders its output, it resolves foreign address and it looks at the hosts file and sees this record. There is a record which maps 127.0.0.1 to. # To allow the same kube context to work on the host and the container:

WHAT IS KUBERNETES PORT WINDOWS

I have Docker Desktop for Windows and it adds this to the hosts file: # Added by Docker Desktop It has nothing to do with actual Kubernetes. Try to create one yourself.That happens because of the way netstat renders output.

WHAT IS KUBERNETES PORT FULL

NodePort and ClusterIP services are created automatically to which the external load balancer will route.Ī full service yaml file with service type as Node Port. Load Balancer − It uses cloud providers’ load balancer. The service can be accessed from outside the cluster using the NodeIP:nodePort. A ClusterIP service, to which NodePort service will route, is automatically created. NodePort − It will expose the service on a static port on the deployed node. It exposes the service within the defined Kubernetes cluster. Multi-Port Service CreationĪpplication: “My Application” -> (Selector)ĬlusterIP − This helps in restricting the service within the cluster.

In the above code, we have created an endpoint which will route the traffic to the endpoint defined as “192.168.168.40:8080”. In this example, we have a selector so in order to transfer traffic, we need to create an endpoint manually. Service Config File with SelectorĪpplication: 'My Application' -> (Selector) The above configuration will create a service with the name Tutorial_point_service. It helps pods to scale very easily.Ī service is a REST object in Kubernetes whose definition can be posted to Kubernetes apiServer on the Kubernetes master to create a new instance. With Service, it is very easy to manage load balancing configuration. It can be defined as an abstraction on the top of the pod which provides a single IP address and DNS name by which pods can be accessed. A service can be defined as a logical set of pods.

What is kubernetes port