Nodeport network

Create Loadbalancer

How to run with docker: (run in kube master)

$ docker run -P -d nginxdemos/nginx-hello

Run follow command:

$ ip address show docker0
$ docker ps
$ docker network ls
$ docker inspect happy_hugle | jq '.[0].NetworkSettings'

go bellow part of output. it will show ip of Container with connect to bride

Test Container nginx by open curl ip:port

curl http://172.17.0.2:8080

$ kubectl create namespace my-namespace
$ kubectl run nginx --image nginxdemos/nginx-hello  -n my-namespace

Create namespace name my-namespace It will create a Kubernetes Pod named nginx with the image nginxdemos/nginx-hello in namespace. However, this command in its default form may not expose the application to external traffic.

$ kubectl get pods -n my-namespace

If you want to expose this nginx pod on a specific port so that it can be accessed externally, you can do so using a Service.

You can expose the Pod using the following command:

$ kubectl expose pod nginx --type=NodePort --port=8080 -n my-namespace

Here’s a breakdown of what each part of this command does:

kubectl expose pod nginx: Exposes the pod named nginx by creating a service.
--type=NodePort: Specifies the service type as NodePort, which will expose the service on a port accessible from outside the cluster.
--port=8080: Maps the pod's port to the service's port (8080 in this case).
-n my-namespace: Targets the my-namespace namespace where the nginx pod resides.

Verify the service:

$ kubectl get services -n my-namespace

The output should show the nginx service with a NodePort assigned (:30843), which will be accessible from outside the cluster using the node's IP address and the specified port.
port of pod is 8080

To locat which node that pod install into:

$ kubectl get pods -n my-namespace -o wide

To Descript pod

$ kubectl describe pod nginx -n my-namespace

To Get ip of node:

$ kubectl get node -A -o wide