K8s

Dockerfile

@@ -1,37 +1,12 @@
-#----------------------------------
-# Stage 1
-#----------------------------------
-
-# Import docker image with maven installed
-FROM maven:3.8.3-openjdk-17 as builder 
-
-# Add maintainer, so that new user will understand who had written this Dockerfile
-MAINTAINER Madhup Pandey<madhuppandey2908@gmail.com>
-
-# Add labels to the image to filter out if we have multiple application running
-LABEL app=bankapp
-
-# Set working directory
-WORKDIR /src
-
-# Copy source code from local to container
-COPY . /src
-
-# Build application and skip test cases
+#---------------------------------stage1-----------------------------------------
+FROM maven:3.9.6-eclipse-temurin-17-alpine AS builder
+WORKDIR /app
+COPY . .
 RUN mvn clean install -DskipTests=true
-
-#--------------------------------------
-# Stage 2
-#--------------------------------------
-
-# Import small size java image
-FROM openjdk:17-alpine as deployer
-
-# Copy build from stage 1 (builder)
-COPY --from=builder /src/target/*.jar /src/target/bankapp.jar
-
-# Expose application port 
-EXPOSE 8080
-
-# Start the application
-ENTRYPOINT ["java", "-jar", "/src/target/bankapp.jar"]
+
+#---------------------------------stage2-----------------------------------------
+FROM openjdk:17-slim
+WORKDIR /app
+COPY --from=builder /app/target/*.jar /app/target/bank.jar
+EXPOSE 8081
+CMD ["java","-jar","/app/target/bank.jar"]

docker-compose.yml

@@ -4,43 +4,34 @@ services:
     image: mysql:latest
     container_name: mysql
     environment:
-      - MYSQL_ROOT_PASSWORD=Test@123
-      - MYSQL_DATABASE=BankDB
+      MYSQL_ROOT_PASSWORD: Test@123
+      MYSQL_DATABASE: bankappdb
+    ports:
+      - "3306:3306"
     volumes:
       - bankapp-volume:/var/lib/mysql
     networks:
       - bankapp
-    healthcheck:
-      test: ["CMD", "mysqladmin", "ping", "-h", "localhost"]
-      interval: 10s
-      timeout: 5s
-      retries: 3
-      start_period: 30s
+
 
   mainapp:
-    image: ${DUSER}/${IMAGE}
-    container_name: Bankapp
+    image: bankapp:latest
+    container_name: "Bankapp"
     environment:
-      - SPRING_DATASOURCE_USERNAME=root
-      - SPRING_DATASOURCE_URL=jdbc:mysql://mysql:3306/BankDB?useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC
-      - SPRING_DATASOURCE_PASSWORD=Test@123
+        SPRING_DATASOURCE_USERNAME: root
+        SPRING_DATASOURCE_URL: jdbc:mysql://mysql:3306/bankappdb?useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC
+        SPRING_DATASOURCE_PASSWORD: Test@123
     ports:
       - "8080:8080"
     depends_on:
-      mysql:
-        condition: service_healthy
+      - mysql
     networks:
       - bankapp
     restart: always
-    healthcheck:
-      test: ["CMD-SHELL", "curl -f http://localhost:8080/actuator/health || exit 1"]
-      interval: 10s
-      timeout: 5s
-      retries: 5
-      start_period: 30s
+
 
 networks:
   bankapp:
 
 volumes:
-    bankapp-volume:
+    bankapp-volume:

kubernetes/bank-deployment.yml

@@ -0,0 +1,45 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: bank-deployment
+  namespace: bank
+  labels:
+    app: bankapp
+spec:
+  replica: 3
+  selector:
+    matchLabels:
+      app: bankapp
+  template:
+    metadata:
+        labels:
+          app: bankapp
+    spec:
+      containers:
+      - name: mybank
+        image: swayamnakshane/mybank:latest
+        ports:
+        - containerPort: 8080
+        environment:
+        - name: SPRING_DATASOURCE_USERNAME
+          valueFrom:
+            configMapKeyRef:
+               name: bank-config
+               key: SPRING_DATASOURCE_USERNAME
+        - name: SPRING_DATASOURCE_URL
+          valueFrom:
+            configMapKeyRef:
+               name: bank-config
+               key: SPRING_DATASOURCE_URL
+        - name: SPRING_DATASOURCE_PASSWORD
+          valueFrom:
+            configMapKeyRef:
+               name: bank-secret
+               key: SPRING_DATASOURCE_PASSWORD
+          resources:
+          limits:
+            cpu: "1"
+            memory: "512Mi"
+          requests:
+            cpu: "0.5"
+            memory: "256Mi"

kubernetes/bank-service.yml

@@ -0,0 +1,13 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: bank-service
+  namespace: bank
+spec:
+  selector:
+    app: bankapp
+  ports:
+  - protocol: TCP
+    port: 8080
+    targetPort: 8080
+

kubernetes/bankapp-deployment.yml

@@ -1,63 +1,67 @@
-apiVersion: apps/v1
 kind: Deployment
+apiVersion: apps/v1
 metadata:
+  name: bank-deployment
+  namespace: bank
   labels:
-    app: bankapp-deploy
-  name: bankapp-deploy
-  namespace: bankapp-namespace
+    app: bankapp
 spec:
-  replicas: 2  # Keep replicas >= 2 for high availability
+  replicas: 3
   selector:
     matchLabels:
-      app: bankapp-deploy
+      app: bankapp
   template:
     metadata:
       labels:
-        app: bankapp-deploy
+        app: bankapp
     spec:
       containers:
-      - name: bankapp
-        image: trainwithshubham/bankapp-eks:v2
+      - name: bank-pod
+        image: swayamnakshane/bank
         ports:
-        - containerPort: 8080
+          - containerPort: 8080
+
+
         env:
-        - name: SPRING_DATASOURCE_URL
+        - name: SPRING_DATASOURCE_PASSWORD
           valueFrom:
-            configMapKeyRef:
-              name: bankapp-config
-              key: SPRING_DATASOURCE_URL
+            secretKeyRef:
+              name: bank-secret
+              key: SPRING_DATASOURCE_PASSWORD
+
         - name: SPRING_DATASOURCE_USERNAME
           valueFrom:
             configMapKeyRef:
-              name: bankapp-config
+              name: bank-configmap
               key: SPRING_DATASOURCE_USERNAME
-        - name: MYSQL_DATABASE
+
+        - name: SPRING_DATASOURCE_URL
           valueFrom:
             configMapKeyRef:
-              name: bankapp-config
-              key: MYSQL_DATABASE
-        - name: SPRING_DATASOURCE_PASSWORD
-          valueFrom:
-            secretKeyRef:
-              name: mysql-secret
-              key: SPRING_DATASOURCE_PASSWORD
-        # readinessProbe:
-        #   httpGet:
-        #     path: /actuator/health  # Update this based on your app's health endpoint
-        #     port: 8080
-        #   initialDelaySeconds: 10
-        #   periodSeconds: 5
-        # livenessProbe:
-        #   httpGet:
-        #     path: /actuator/health  # Update this based on your app's health endpoint
-        #     port: 8080
-        #   initialDelaySeconds: 30
-        #   periodSeconds: 10
+              name: bank-configmap
+              key: SPRING_DATASOURCE_URL
+
+
+#        livenessProbe:
+#           httpGet:
+#             path: /actuator/health
+#             port: 8080
+#           initialDelaySeconds: 10 
+#            periodSeconds: 5          
+#            failureThreshold: 3
+#
+#        readinessProbe:
+#            httpGet:
+#              path: /actuator/health   
+#              port: 8080
+#            initialDelaySeconds: 5    
+#            periodSeconds: 5        
+#            failureThreshold: 3
+
         resources:
           requests:
             memory: "512Mi"
             cpu: "250m"
           limits:
             memory: "1Gi"
             cpu: "500m"
-

kubernetes/bankapp-namespace.yaml

@@ -1,6 +1,4 @@
-apiVersion: v1
 kind: Namespace
+apiVersion: v1
 metadata:
-  name: bankapp-namespace
-  labels:
-    name: bankapp-namespace
+  name: bank

kubernetes/bankapp-service.yaml

@@ -1,15 +1,15 @@
-apiVersion: v1
 kind: Service
+apiVersion: v1
 metadata:
-  name: bankapp-service
-  namespace: bankapp-namespace
-  labels:
-    app: bankapp
+  name: bank-svc
+  namespace: bank
 spec:
   selector:
-    app: bankapp-deploy
+    app: bankapp
   ports:
-  - protocol: TCP
-    port: 8080
-    targetPort: 8080
+    - protocol: TCP
+      targetPort: 8080
+      port: 8080
+      nodePort: 30080
+  type: NodePort
 

kubernetes/config.yml

@@ -0,0 +1,10 @@
+kind: clster
+apiVersion: kind.x-k8s.io/v1alpha4
+
+nodes:
+- role: control-plane
+  image: kindest/node:1.31.2
+- role: worker
+  image: kindest/node:1.31.2
+- role: worker
+  image: kindest/node:1.31.2

kubernetes/configMap.yml

@@ -0,0 +1,10 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: bank-config
+  namespace: bank
+data:
+  MYSQL_DATABASE: bankappdb
+  SPRING_DATASOURCE_USERNAME: root
+  SPRING_DATASOURCE_URL: jdbc:mysql://mysql:3306/bankappdb?useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC
+

kubernetes/configmap.yaml

@@ -1,9 +1,9 @@
-apiVersion: v1
 kind: ConfigMap
+apiVersion: v1
 metadata:
-  name: bankapp-config
-  namespace: bankapp-namespace
+  name: bank-configmap
+  namespace: bank
 data:
-  MYSQL_DATABASE: BankDB
-  SPRING_DATASOURCE_URL: jdbc:mysql://mysql-svc.bankapp-namespace.svc.cluster.local:3306/BankDB?useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC
+  MYSQL_DATABASE: bankappdb
   SPRING_DATASOURCE_USERNAME: root
+  SPRING_DATASOURCE_URL: jdbc:mysql://mysql:3306/bankappdb?useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC