🛌 Commit progress before sleep break

code/kubernetes/node-server-example/Dockerfile

@@ -0,0 +1,8 @@
+FROM node:4.4
+MAINTAINER "Mia von Steinkirch" 
+
+EXPOSE 1337
+
+COPY server.js .
+
+CMD node server.js

code/kubernetes/node-server-example/Makefile

@@ -0,0 +1,15 @@
+.DELETE_ON_ERROR:
+
+build:
+	docker build -t  node_app_test .
+
+run:
+	docker run -d -p 1337:1337 node_app_test
+
+curl:
+	curl localhost:1337
+
+status:
+	docker ps
+
+.PHONY: build run curl status

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

@@ -0,0 +1,99 @@
+## 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
+```
+

code/kubernetes/node-server-example/node_example_kube_config.yaml

@@ -0,0 +1,18 @@
+apiVersion: extensions/v1beta1
+kind: Deployment
+metadata:
+  name: node_app_test
+spec:
+  replicas: 1
+  template:
+    metadata:
+      labels:
+        run: node_app_test
+    spec:
+      containers:
+      - name: node_app_test
+        image: node_app_test:1.0
+        ports:
+          - containerPort: 1337
+      imagePullSecrets:
+      - name: <encrypted password for your container registry>

code/kubernetes/node-server-example/server.js

@@ -0,0 +1,11 @@
+var os = require("os");
+var hostname = os.hostname();
+var http = require('http');
+var handleRequest = function(request, response) {
+	  console.log('Received request for URL: ' + request.url);
+	  response.writeHead(200);
+	  response.end("Hello from container " + hostname + "!\n\n");
+};
+var www = http.createServer(handleRequest);
+www.listen(1337);
+