Adding the fourth lesson from the Kubernetes webinar series

03-lesson/README.md

@@ -507,3 +507,6 @@ We have a series of inserts to issue to populate the database.
 Reference:
 * [Kubernetes Webinar Series - A Closer Look at Pods and Replicas](https://www.youtube.com/watch?v=CU-nNEY6Hfg&index=3&list=PLF3s2WICJlqOiymMaTLjwwHz-MSVbtJPQ)
 
+<!--
+https://github.com/janakiramm/Kubernetes-multi-container-pod
+-->

04-lesson/Deploy/Dockerfile

@@ -0,0 +1,10 @@
+FROM node
+RUN mkdir -p /usr/src/app
+WORKDIR /usr/src/app
+#COPY ./app/ ./
+#COPY ./ ./
+COPY app.js ./
+COPY package.json ./
+CMD chmod +x .
+RUN npm install
+CMD ["node", "app.js"]

04-lesson/Deploy/app.js

@@ -0,0 +1,17 @@
+var express 	= require('express');
+var app 		= express();
+
+var port = process.env.PORT || 8080;
+var color = process.env.COLOR || 'no color assigned yet';
+var router = express.Router();
+
+router.get('/', function(req, res){
+	res.json({ 'color': color});
+});
+
+app.use('/', router);
+
+app.listen(port);
+console.log('Server Started at ' + port + '  ' +  'color :' + color);
+
+

04-lesson/Deploy/color-pod.yaml

@@ -0,0 +1,63 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: red
+  labels:
+    color: red
+spec:
+  containers:
+    - image: janakiramm/color
+      name: red
+      env:
+        - name: "COLOR"
+          value: "red"
+      ports:
+        - containerPort: 8080
+---
+apiVersion: v1
+kind: Pod
+metadata:
+  name: green
+  labels:
+    color: green
+spec:
+  containers:
+    - image: janakiramm/color
+      name: green
+      env:
+        - name: "COLOR"
+          value: "green"
+      ports:
+        - containerPort: 8080
+---
+apiVersion: v1
+kind: Pod
+metadata:
+  name: blue
+  labels:
+    color: blue
+spec:
+  containers:
+    - image: janakiramm/color
+      name: blue
+      env:
+        - name: "COLOR"
+          value: "blue"
+      ports:
+        - containerPort: 8080
+---
+apiVersion: v1
+kind: Pod
+metadata:
+  name: yellow
+  labels:
+    color: yellow
+spec:
+  containers:
+    - image: janakiramm/color
+      name: yellow
+      env:
+        - name: "COLOR"
+          value: "yellow"
+      ports:
+        - containerPort: 8080

04-lesson/Deploy/color-rc.yaml

@@ -0,0 +1,79 @@
+apiVersion: v1
+kind: ReplicationController
+metadata:
+  name: red
+spec:
+  replicas: 3
+  template:
+    metadata:
+      labels:
+        color: red
+    spec:
+      containers:
+        - image: ernesen/node:v1
+          name: red
+          env:
+            - name: "COLOR"
+              value: "red"
+          ports:
+            - containerPort: 8080
+---
+apiVersion: v1
+kind: ReplicationController
+metadata:
+  name: green
+spec:
+  replicas: 3
+  template:
+    metadata:
+      labels:
+        color: green
+    spec:
+      containers:
+        - image: ernesen/node:v1
+          name: green
+          env:
+            - name: "COLOR"
+              value: "green"
+          ports:
+            - containerPort: 8080
+---
+apiVersion: v1
+kind: ReplicationController
+metadata:
+  name: blue
+spec:
+  replicas: 3
+  template:
+    metadata:
+      labels:
+        color: blue
+    spec:
+      containers:
+        - image: ernesen/node:v1
+          name: blue
+          env:
+            - name: "COLOR"
+              value: "blue"
+          ports:
+            - containerPort: 8080
+---
+apiVersion: v1
+kind: ReplicationController
+metadata:
+  name: yellow
+spec:
+  replicas: 3
+  template:
+    metadata:
+      labels:
+        color: yellow
+    spec:
+      containers:
+        - image: ernesen/node:v1
+          name: yellow
+          env:
+            - name: "COLOR"
+              value: "yellow"
+          ports:
+            - containerPort: 8080

04-lesson/Deploy/color-srv.yaml

@@ -0,0 +1,59 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: red
+spec:
+  selector:
+    color: red
+  type: NodePort
+  ports:
+    - name: http
+      nodePort: 31001
+      port: 80
+      targetPort: 8080
+      protocol: TCP
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: green
+spec:
+  selector:
+    color: green
+  type: NodePort
+  ports:
+    - name: http
+      nodePort: 31002
+      port: 80
+      targetPort: 8080
+      protocol: TCP
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: blue
+spec:
+  selector:
+    color: blue
+  type: NodePort
+  ports:
+    - name: http
+      nodePort: 31003
+      port: 80
+      targetPort: 8080
+      protocol: TCP
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: yellow
+spec:
+  selector:
+    color: yellow
+  type: NodePort
+  ports:
+    - name: http
+      nodePort: 31004
+      port: 80
+      targetPort: 8080
+      protocol: TCP

04-lesson/Deploy/color-svc.yaml

@@ -0,0 +1,59 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: red
+spec:
+  selector:
+    color: red
+  type: NodePort
+  ports:
+    - name: http
+      nodePort: 31001
+      port: 80
+      targetPort: 8080
+      protocol: TCP
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: green
+spec:
+  selector:
+    color: green
+  type: NodePort
+  ports:
+    - name: http
+      nodePort: 31002
+      port: 80
+      targetPort: 8080
+      protocol: TCP
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: blue
+spec:
+  selector:
+    color: blue
+  type: NodePort
+  ports:
+    - name: http
+      nodePort: 31003
+      port: 80
+      targetPort: 8080
+      protocol: TCP
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: yellow
+spec:
+  selector:
+    color: yellow
+  type: NodePort
+  ports:
+    - name: http
+      nodePort: 31004
+      port: 80
+      targetPort: 8080
+      protocol: TCP