Angular on Azure App Service & Spring Boot Microservices on AKS with CI/CD, Helm, Azure DevOps, Prometheus, Grafana & Log Analytics: End-to-End Deployment


This diagram represents the end-to-end deployment workflow of an Angular frontend and Spring Boot microservices on Azure using Azure DevOps, Kubernetes, Helm, Prometheus, and Grafana.

Key Flow:

  1. Code Development & Push: Developer writes Angular & Spring Boot code and pushes it to GitHub.
  2. CI/CD with Azure DevOps: GitHub triggers a CI/CD pipeline in Azure DevOps, which builds the project and pushes the Docker image to Azure Container Registry (ACR).
  3. Deployment:
    • Spring Boot microservices are deployed on Azure Kubernetes Service (AKS) using Helm.
    • The Angular frontend is deployed on Azure App Service.
  4. Monitoring & Logging:
    • Prometheus collects metrics from AKS and sends them to Grafana for visualization.
    • Azure Monitor & Log Analytics track logs and alerts.

This ensures automated deployments, monitoring, and logging for a production-ready cloud environment.

End-to-End Deployment Guide

Overview

This guide covers the complete deployment of:

  • Angular on Azure App Service
  • Spring Boot Microservices on Azure Kubernetes Service (AKS)
  • CI/CD using Azure DevOps
  • Integration with Helm, Azure Monitor, Log Analytics, Prometheus, and Grafana

1️⃣ Create Spring Boot "Hello World" Microservice

Step 1: Initialize Spring Boot

Generate a project using Spring Initializr or run:

curl https://start.spring.io/starter.zip -d dependencies=web -d language=java -o backend.zip
unzip backend.zip -d spring-boot-backend
cd spring-boot-backend

Step 2: Create a REST Controller

Edit src/main/java/com/example/demo/HelloController.java:

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/api")
public class HelloController {
    @GetMapping("/hello")
    public String sayHello() {
        return "Hello, World from Spring Boot!";
    }
}

Step 3: Add Prometheus Metrics

Add Micrometer Prometheus dependency in pom.xml:

<dependency>
    <groupId>io.micrometer</groupId>
    <artifactId>micrometer-registry-prometheus</artifactId>
</dependency>

Expose metrics in application.properties:

management.endpoints.web.exposure.include=metrics,prometheus

Step 4: Run Locally

mvn spring-boot:run

Check API: http://localhost:8080/api/hello

Check Metrics: http://localhost:8080/actuator/prometheus

2️⃣ Create Angular "Hello World" Frontend

Step 1: Create Angular Project

ng new hello-world-angular
cd hello-world-angular
ng add @angular/material

Step 2: Create API Service

Edit src/app/api.service.ts:

import { HttpClient } from '@angular/common/http';
import { Injectable } from '@angular/core';
import { Observable } from 'rxjs';

@Injectable({
  providedIn: 'root'
})
export class ApiService {
  private apiUrl = 'http://<AKS-IP-Address>/api/hello';

  constructor(private http: HttpClient) {}

  getHelloMessage(): Observable<string> {
    return this.http.get(this.apiUrl, { responseType: 'text' });
  }
}

3️⃣ Push Code to GitHub

git init
git remote add origin https://github.com/yourusername/your-repo.git
git add .
git commit -m "Initial commit"
git push -u origin main

4️⃣ Deploy Angular on Azure App Service

Step 1: Build & Deploy

ng build --configuration=production
az webapp create --resource-group <resource-group> --plan <app-service-plan> --name <angular-app-name> --runtime "NODE|18-lts"
az webapp deployment source config-zip --resource-group <resource-group> --name <angular-app-name> --src <path-to-zip-file>

5️⃣ Deploy Spring Boot Microservices on AKS using Helm

Step 1: Create AKS Cluster

az aks create --resource-group <resource-group> --name <aks-cluster> --node-count 2 --enable-addons monitoring --generate-ssh-keys

Step 2: Deploy with Helm

Create Helm Chart

helm create hello-world-chart
cd hello-world-chart

Edit values.yaml:

replicaCount: 2

image:
  repository: myacr.azurecr.io/hello-world
  tag: v1
  pullPolicy: Always

service:
  type: LoadBalancer
  port: 80
  targetPort: 8080

Deploy Helm Chart

helm install hello-world-release ./hello-world-chart

6️⃣ Enable Azure Monitor & Log Analytics

Step 1: Enable Log Analytics for AKS

az monitor log-analytics workspace create --resource-group <resource-group> --workspace-name <workspace-name>
az aks enable-addons --resource-group <resource-group> --name <aks-cluster> --addons monitoring --workspace-resource-id <workspace-id>

Step 2: View Logs

az monitor log-analytics query --workspace <workspace-id> --analytics-query "ContainerLog | take 10"

7️⃣ Install Prometheus & Grafana for Monitoring

Step 1: Add Helm Repo

helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
helm repo update

Step 2: Install Prometheus

helm install prometheus prometheus-community/prometheus --namespace monitoring --create-namespace

Step 3: Install Grafana

helm install grafana prometheus-community/grafana --namespace monitoring

Step 4: Get Grafana Admin Password

kubectl get secret --namespace monitoring grafana -o jsonpath="{.data.admin-password}" | base64 --decode

Step 5: Access Grafana Dashboard

kubectl port-forward --namespace monitoring service/grafana 3000:80

Visit: http://localhost:3000 Login with admin and the retrieved password.

8️⃣ Azure DevOps CI/CD for Spring Boot

trigger:
  - main

pool:
  vmImage: 'ubuntu-latest'

steps:
  - task: Maven@3
    inputs:
      mavenPomFile: 'pom.xml'
      goals: 'package'

  - task: Docker@2
    inputs:
      containerRegistry: 'myacr'
      repository: 'hello-world'
      command: 'buildAndPush'
      Dockerfile: '**/Dockerfile'

  - task: HelmDeploy@0
    inputs:
      connectionType: 'Azure Resource Manager'
      azureSubscription: '<azure-subscription-name>'
      azureResourceGroup: '<resource-group-name>'
      kubernetesCluster: '<aks-cluster-name>'
      command: 'upgrade'
      chartType: 'FilePath'
      chartPath: 'hello-world-chart'
      releaseName: 'hello-world-release'

🎯 Final Setup

✅ Angular App Running on Azure App Service 

✅ Spring Boot Microservices Running on AKS with Helm 

✅ CI/CD Automated with Azure DevOps 

✅ Azure Monitor & Log Analytics Integrated 

✅ Prometheus & Grafana Installed for Monitoring

Popular posts from this blog

Learn Java 8 streams with an example - print odd/even numbers from Array and List

Image
Example 1: Java 8 program to print odd numbers from a List   import java.util.Arrays; import java.util.List; import java.util.stream.Collectors; /*Java 8 Program to find Odd Numbers from a List*/ public class DriverClass { public static void main( String [] args) { List < Integer > numbers = Arrays. asList( 1 , 4 , 8 , 40 , 11 , 22 , 33 , 99 ); List < Integer > oddNumbers = numbers.stream(). filter(o -> o % 2 != 0 ). collect(Collectors.toList()); System.out.println(oddNumbers); } } 1. Initialize List using Arrays.asList() method. Java's built-in Arrays.asList() method converts an array into a list. This method takes an array as an argument and returns a List object. 2.  Java List interface provides stream() method which returns a sequential Stream with list of Integer as its source. 3. The Java stream filter(...
Read more

Java Stream API - How to convert List of objects to another List of objects using Java streams?

Image
In this section, we will show you how to convert a List of objects to another List of objects in Java using the Java streams map(). The ‘map’ method maps each element to its corresponding result. Java Stream API   The Java Stream API provides a functional programming approach over the object oriented capabilities of Java. It is used for processing collections of objects. The Stream in Java can be defined as a sequence of elements from a source List, Set or Array. Most of the stream operations return a Stream. This avails engender a chain of stream operations(stream pipe-lining). The streams withal support the aggregate or terminal operations on the elements. for example, finding the sum or maximum element or finding the average etc...Stream operations can either be executed sequentially or parallel. when performed parallelly, it is called a parallel stream.   Stream map() Method   The Java 8 Stream map() is an intermediate operation. It converts Stream<obj1> to Str...
Read more

Registration and Login with Spring Boot + Spring Security + Thymeleaf

Image
In this section, we will learn how to create user registration and login using Spring boot, Spring security, Thymeleaf, JPA, and H2DB. The GitHub repository link is provided at the end of this tutorial. You can download the source code. Technologies used: Spring Boot 2.5.5  Spring Data JPA  Spring Security  Thymeleaf  Maven 3+  Java 17  H2 Database   User Interface User Registration Authentication Failed Authentication success Sign out Final Project Structure: Complete pom.xml: <? xml version ="1.0" encoding ="UTF-8" ?> < project xmlns ="http://maven.apache.org/POM/4.0.0" xmlns: xsi ="http://www.w3.org/2001/XMLSchema-instance" xsi :schemaLocation ="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd" > < modelVersion >4.0.0</ modelVersion > < parent > < groupId >org.springframework.boot</ groupId > < artifactId >spring-boot-starter-pare...
Read more

Java, Spring Boot Mini Project - Library Management System - Download

Image
Hello everyone, Hope you are doing well. Here, we provide a Library Management System mini-project for beginners, it's free for download. Maybe you can build more on top of this project and create your own product, that's all about you. The source code download link is provided at the end of this post. 1. Benefit of this project You could cover the following technologies and features by learning and debugging this mini project. Java 17 Java Stream Java Lamda Expressions Java Records Functional programming Object-oriented programming var Keyword in Java Generics in Java Java Switch Spring boot 2.6.4 Spring Security Thymeleaf template engine OpenCSV Spring Data JPA Server Side Pagination H2 Database  Bootstrap HTML CSS and more... 2. Objective Of Spring Boot On Library Management System The main objective of this project is to manage the details of the books, author, category, and publisher. Only Admin/Librarian will manage all these activities. Also, they can export the data in ...
Read more

ReactJS, Spring Boot JWT Authentication Example

Image
In this tutorial, we’ll create a user registration & login example using ReactJS, Spring Boot, Spring Security, and JWT authentication. You could download the source code from our Github repository, the download link is provided at the end of this tutorial. Technologies used Backend Technologies: Java 17 Spring Boot 2.7.0 Spring Security Spring Data JPA JWT H2 Database Frontend Technologies: React 17.0.1 Axios 0.27.2 Redux 4.0.5 Bootstrap 4.5.2 ReactJS - SpringBoot - JWT - Flow Backend Project Directory: Frontend Project Directory: Following is the screenshot of our application - User Registration: User Signin: Profile View: Access Resource: We will build two projects:  1. Backend:   spring-boot-security-jwt 2. Frontend: react-redux-jwt Project 1: spring-boot-security-jwt Pom.xml <?xml version = "1.0" encoding = "UTF-8" ?> <project xmlns = "http://maven.apache.org/POM/4.0.0" xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance"...
Read more

Top 5 Java ORM tools - 2024

Image
  The term ORM refers to object-relational mapping, which uses objects to adapt programming languages to database systems while allowing them to function with SQL and object-oriented programming ideas. Any kind of database management system that can accomplish object mapping to the table in the virtual system is suitable for the implementation of ORM. Java has a wide variety of ORM tools, some of which are mentioned below: 1. Hibernate Hibernate is a lightweight, open-source, non-invasive Java ORM (Object-Relational Mapping) framework that allows developers to create objects that function independently of database software and create persistence logic in any Java or JavaEE application. It offers an abstraction layer, so developers don't have to bother about implementations; Hibernate handles these tasks internally, such as connecting to databases and creating queries to carry out CRUD operations, among other things. Persistence logic development is done with it. Persistence logic r...
Read more

Java - Blowfish Encryption and decryption Example

Image
Blowfish is an encryption method developed by Bruce Schneier in 1993 as an alternative to the DES encryption method. It is significantly faster than DES and provides good encryption speed, although no effective cryptanalysis technique has been found to date. It is one of the first secure block ciphers that is not protected by any patents and is therefore freely available for anyone to use. This is a symmetric block cipher algorithm. Block size: 64 bits Key size: variable size from 32 to 448 bits number of subsections: 18 [P-array] number of rounds: 16 number of substitution blocks: 4 [each with 512 records of 32 bits each] develop  Example 1: Encryption and decryption using Blowfish import java.io.UnsupportedEncodingException; import java.nio.charset.Charset; import java.security.InvalidKeyException; import java.security.NoSuchAlgorithmException; import java.util.Base64; import javax.crypto.BadPaddingException; import javax.crypto.Cipher; import javax.crypto.IllegalBlockSiz...
Read more

Spring boot video streaming example-HTML5

Image
Hello everyone, Today we will learn how to stream MP4 video using Spring Boot and Spring Web Flux.  The Source code download link is provided at the end of this post. New, Quarkus Practice User Interface   Project Structure: G radle(build.gradle) plugins { id 'org.springframework.boot' version '2.5.4' id 'io.spring.dependency-management' version '1.0.11.RELEASE' id 'java' } group = 'com.knf.demo' version = '0.0.1-SNAPSHOT' sourceCompatibility = '11' repositories { mavenCentral() } dependencies { implementation 'org.springframework.boot:spring-boot-starter-webflux' testImplementation 'org.springframework.boot:spring-boot-starter-test' testImplementation 'io.projectreactor:reactor-test' } test { useJUnitPlatform() } Service (VideoStreamingService.java) package  com.knf.demo.service ; import org.springframework.beans.factory.annotation. Autowired ; import org.springframework...
Read more

Google Cloud Storage + Spring Boot - File Upload, Download, and Delete

Image
In this section, we will learn  how to  create a simple spring boot application to perform different file operations such as upload, download, list, and delete files from the Google Cloud Storage. 1.  A little bit of Background Google Cloud Storage Cloud Storage is a managed service for storing unstructured data. Store any amount of data and retrieve it as often as you like. More Info - click here! Spring Boot Spring Boot makes it easy to create stand-alone, production-grade Spring-based Applications that you can "just run".  More Info - click here! 2. Create a GCP Project First, Sign into the Google console at  https://console.cloud.google.com . You can create a new project by first selecting the project dropdown in the top left and selecting " New Project ". Next, specify your GCP  Project name  and  Project ID . Then  Click on the " CREATE " button. Copy " Project ID " and keep it for future purposes. 3. Create a Google Cloud Storage bucke...
Read more