[Rajeev] Kubernetes deployment manifests

Author: callicoder

deployments/kustomization.yaml

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+# This file should not be checked into Git. It's published only for demonstration purpose.
+secretGenerator:
+- name: mysql-root-pass
+  literals:
+  - password=R00t
+- name: mysql-user
+  literals:
+  - username=callicoder 
+- name: mysql-pass
+  literals:
+  - password=c@ll1c0d3r
+- name: mysql-db
+  literals:
+  - database=polls      
+- name: mysql-url
+  literals:
+  - url=jdbc:mysql://polling-app-mysql:3306/polls?useSSL=false&serverTimezone=UTC&useLegacyDatetimeCode=false
+resources:
+  - mysql-deployment.yaml
+  - polling-app-server.yaml  

deployments/mysql-deployment.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: polling-app-mysql
+  labels:
+    app: polling-app
+spec:
+  ports:
+    - port: 3306
+  selector:
+    app: polling-app
+    tier: mysql
+  clusterIP: None
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: mysql-pv-claim
+  labels:
+    app: polling-app
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 250Mi
+---
+apiVersion: apps/v1 # for versions before 1.9.0 use apps/v1beta2
+kind: Deployment
+metadata:
+  name: polling-app-mysql
+  labels:
+    app: polling-app
+spec:
+  selector:
+    matchLabels:
+      app: polling-app
+      tier: mysql
+  strategy:
+    type: Recreate
+  template:
+    metadata:
+      labels:
+        app: polling-app
+        tier: mysql
+    spec:
+      containers:
+      - image: mysql:5.6
+        name: mysql
+        env:
+        - name: MYSQL_ROOT_PASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: mysql-root-pass
+              key: password
+        - name: MYSQL_DATABASE
+          valueFrom:
+            secretKeyRef:
+              name: mysql-db
+              key: database
+        - name: MYSQL_USER
+          valueFrom:
+            secretKeyRef:
+              name: mysql-user
+              key: username
+        - name: MYSQL_PASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: mysql-pass
+              key: password
+        ports:
+        - containerPort: 3306
+          name: mysql
+        volumeMounts:
+        - name: mysql-persistent-storage
+          mountPath: /var/lib/mysql
+      volumes:
+      - name: mysql-persistent-storage
+        persistentVolumeClaim:
+          claimName: mysql-pv-claim

deployments/polling-app-client.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: polling-app-client
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      name: polling-app-client
+  template:
+    metadata:
+      labels:
+        name: polling-app-client
+    spec:
+      containers:
+      - name: polling-app-client
+        image: callicoder/polling-app-client:1.0.0
+        imagePullPolicy: IfNotPresent
+        ports:
+          - name: http
+            containerPort: 80
+        resources:
+          limits:
+            cpu: 0.2
+            memory: "10Mi"
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: polling-app-client
+spec:
+  type: NodePort
+  selector:
+    name: polling-app-client
+  ports:
+  - name: http
+    port: 80
+    targetPort: 80

deployments/polling-app-server.yaml

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+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: polling-app-server
+  labels:
+    app: polling-app-server
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: polling-app-server
+  template:
+    metadata:
+      labels:
+        app: polling-app-server
+    spec:
+      containers:
+      - name: polling-app-server
+        image: callicoder/polling-app-server:1.0.0
+        imagePullPolicy: IfNotPresent
+        ports:
+          - name: http
+            containerPort: 8080
+        resources:
+          limits:
+            cpu: 0.2
+            memory: "256Mi"
+        env:
+        - name: SPRING_DATASOURCE_USERNAME
+          valueFrom:
+            secretKeyRef:
+              name: mysql-user
+              key: username
+        - name: SPRING_DATASOURCE_PASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: mysql-pass
+              key: password
+        - name: SPRING_DATASOURCE_URL
+          valueFrom:
+            secretKeyRef:
+              name: mysql-url
+              key: url
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: polling-app-server
+  labels:
+    app: polling-app-server
+spec:
+  type: NodePort
+  selector:
+    app: polling-app-server
+  ports:
+  - name: http
+    port: 8080
+    targetPort: 8080