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code/kubernetes/node-server-example/README.md

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+## deploying a node.js K8s cluster with kubectl
+
+<br>
+
+
+1. Build the image:
+
+```
+make build:
+```
+<br>
+
+2. Run the container:
+
+```
+make run
+```
+
+<br>
+
+3. Check whether the server worked
+
+```
+make curl
+```
+<br>
+
+4. Check container's status
+
+```
+$ make status
+```
+
+<br>
+
+---
+
+### useful commands
+
+<br>
+
+Exec inside the container:
+
+```
+$ docker exec -i -t <container name from status> /bin/bash
+```
+
+Check images in disk:
+
+```
+$ docker images
+```
+
+<br>
+
+----
+
+### pushing the registry to kubernetes
+
+<br>
+
+In a real production system, we’ll want to build images in one place, then run these images in the Kubernetes cluster. 
+
+The system that images for distribution is called a **container registry**.
+
+
+Using a `yaml` Kubernetes files (for example, the one inside `node_server_example/`), you can now deploy the image with:
+
+```
+$ kubectl create -f  node_example_kube_config.yaml
+```
+
+After that, you are able to create the service with:
+
+```
+$  kubectl expose deployment node-app-test
+```
+
+Also, check out the service status with:
+
+```
+$ kubectl get services
+```
+
+<br>
+
+---
+
+### cleanning up
+
+<br>
+
+Removing the service and the deployment when you are done:
+
+```
+$ kubectl delete service node-app-test
+$ kubectl delete deployment node-app-test
+```
+