Dockerized the App and added kubernetes deployment template

.dockerignore

@@ -0,0 +1,3 @@
+.git
+node_modules
+npm-debug

Dockerfile

@@ -0,0 +1,19 @@
+FROM node:13.8.0-alpine3.11
+
+# Create app directory
+WORKDIR /usr/src/app
+
+# Install app dependencies
+# A wildcard is used to ensure both package.json AND package-lock.json are copied
+# where available (npm@5+)
+COPY package*.json ./
+
+RUN npm install
+# If you are building your code for production
+# RUN npm ci --only=production
+
+# Bundle app source
+COPY . .
+
+EXPOSE 8080
+CMD [ "node", "server.js" ]

config/database.js

@@ -1,4 +1,4 @@
 module.exports = {
-    remoteUrl : 'mongodb://node:[email protected]:27017/uwO3mypu',
-    localUrl: 'mongodb://localhost/meanstacktutorials'
-};
+    remoteUrl : process.env.DB_CONN_STRING,
+    localUrl : process.env.DB_CONN_STRING
+};

kubernetes.yaml

@@ -0,0 +1,41 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: todo
+spec:
+  replicas: 3
+  selector:
+    matchLabels:
+      app: todo
+  template:
+    metadata:
+      labels:
+        app: todo
+    spec:
+      containers:
+        - name: todo
+          image: codebabel/todo
+          ports:
+            - containerPort: 8080
+          env:
+          - name: DB_CONN_STRING
+            valueFrom:
+              secretKeyRef:
+                name: db-conn-string
+                key: key
+
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: todo-service
+  labels:
+    name: todo-service
+spec:
+  ports:
+    - port: 80
+      targetPort: 8080
+      protocol: TCP
+  selector:
+    app: todo
+  type: LoadBalancer