Wednesday, 9 July 2025

AWS Vs Azure

 1)AWS (Amazon Web Services) :

AWS is a secure, scalable cloud platform offering over 200 services including computing, storage, databases, machine learning, and DevOps tools. It enables organizations to build and deploy applications without managing physical servers. With pay-as-you-go pricing, global data centers, and robust security, AWS supports businesses of all sizes in accelerating innovation and reducing infrastructure costs.

🔹 Core Amazon Services (What, Why, and Where to Use)

🔸 1. Amazon EC2 (Elastic Compute Cloud)

EC2 provides scalable virtual servers (instances) in the cloud. You can choose CPU, memory, and storage for different workloads. It’s ideal for hosting web apps, backend processing, or any server-based workload. It supports auto-scaling and load balancing for high availability.


🔸 2. Amazon S3 (Simple Storage Service)

S3 is an object storage service used to store and retrieve any amount of data. It’s durable (99.999999999%) and secure, commonly used for backups, static website hosting, and storing media or logs. Data is organized in buckets and accessed via REST APIs.


🔸 3. AWS Lambda

Lambda is a serverless compute service that runs your code in response to events (e.g., S3 upload, HTTP requests). You don’t manage servers; AWS handles scaling and availability. It's ideal for lightweight backend tasks, automation, and microservices.


🔸 4. Amazon RDS (Relational Database Service)

RDS provides managed relational databases like MySQL, PostgreSQL, Oracle, and SQL Server. It handles backups, patching, and replication. You use it when you need a reliable, scalable, and managed database backend for applications.


🔸 5. AWS IAM (Identity and Access Management)

IAM manages users, roles, and permissions securely. It lets you define who can access what in your AWS environment. It's foundational for secure access control, enabling role-based access, MFA, and least-privilege policies.


🔸 6. Amazon VPC (Virtual Private Cloud)

VPC allows you to launch AWS resources in a logically isolated virtual network. You can define subnets, route tables, firewalls, and VPNs. It’s essential for setting up secure and controlled cloud networks.


🔸 7. Amazon CloudWatch

CloudWatch monitors AWS resources and custom metrics in real time. You can set alarms, logs, and dashboards to monitor performance, errors, and usage. It's used in DevOps and incident response automation.


🔸 8. Amazon CloudFormation

CloudFormation allows you to define and provision AWS infrastructure as code using YAML or JSON templates. It automates deployments and supports versioning. It's widely used in CI/CD pipelines and infrastructure automation.


🔸 9. AWS Certification Paths

AWS offers role-based certifications like:

  • Cloud Practitioner (Foundational)

  • Solutions Architect Associate/Professional

  • Developer Associate

  • SysOps Administrator

  • DevOps Engineer Professional
    Each certification focuses on a specific job role with hands-on scenario-based learning.


🔸 10. DevOps on AWS

AWS supports DevOps with tools like:

  • CodePipeline (CI/CD pipeline)

  • CodeBuild (build service)

  • CodeDeploy (automated deployment)

  • CloudWatch & CloudTrail (monitoring & logging)

  • Elastic Beanstalk & ECS (automated provisioning & orchestration)
    It enables full automation from code to production.


🔸 Architecture Diagrams

Common AWS architecture patterns:

  • 3-tier Web App (ELB → EC2 → RDS)

  • Serverless (API Gateway → Lambda → DynamoDB/S3)

  • CI/CD pipeline (CodeCommit → CodeBuild → CodeDeploy)

  • Data Lake (S3 → Glue → Athena → QuickSight)

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🔷 2) Microsoft Azure :

Microsoft Azure is a cloud computing platform offering 200+ services for building, testing, deploying, and managing applications. It supports IaaS, PaaS, and SaaS models with hybrid cloud capabilities. Azure integrates well with Microsoft products (e.g., Active Directory, Office 365) and provides global infrastructure, security, and compliance standards. It’s used by enterprises for scalable, resilient, and modern cloud-native applications.

🔹 Core Azure Services (What, Why, and Where to Use)

1. Azure Virtual Machines (VMs)

Azure VMs provide scalable computing resources in the cloud. You can choose OS, size, disk type, and use it to host applications or back-end systems. Ideal for legacy apps, development, or custom server setups.


2. Azure Blob Storage

A highly scalable object storage solution for unstructured data like images, videos, logs, and backups. Used in web apps, data lakes, and content delivery scenarios. Supports tiers (Hot, Cool, Archive) to optimize costs.


3. Azure Functions

Serverless compute platform similar to AWS Lambda. Executes event-driven code without managing infrastructure. Useful for automation, API backends, triggers (timers, HTTP, blob events), and microservices.


4. Azure SQL Database

A managed relational database-as-a-service (DBaaS) based on SQL Server. Supports high availability, backup, scaling, and performance tuning. Ideal for cloud-native apps requiring SQL support.


5. Azure Active Directory (AAD)

Identity management and access control system for users, apps, and services. Supports SSO, MFA, RBAC, and integrates with Microsoft 365. Essential for managing enterprise users and secure app access.


6. Azure Virtual Network (VNet)

A logically isolated network for Azure resources. Supports subnets, route tables, gateways, VPNs, and network security groups. Similar to AWS VPC—used for building secure and private cloud environments.


7. Azure Monitor

Monitors the performance, availability, and health of your Azure resources. Works with Log Analytics, Application Insights, and alerts. Used by DevOps teams for visibility and diagnostics.


8. Azure Resource Manager (ARM)

Infrastructure as code solution using JSON or Bicep templates. You define and manage infrastructure deployments with version control and repeatability. Similar to AWS CloudFormation.


9. Azure DevOps

A suite of tools for modern DevOps:

  • Azure Repos – Git repo hosting

  • Azure Pipelines – CI/CD automation

  • Azure Boards – Agile project tracking

  • Azure Artifacts – Package management

  • Azure Test Plans – Test management


10. Azure Kubernetes Service (AKS)

Managed Kubernetes environment for deploying containerized apps. Handles scaling, upgrades, and high availability. Used in microservices architecture and DevOps-driven deployments.

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AWS vs Azure specifically for Spring Boot microservices deployed with Kubernetes (K8s).
We’ll cover infrastructure, service options, integration, pricing, and DevOps tooling.


3) AWS vs Azure: Spring Boot Microservices on Kubernetes

Feature / CategoryAWS (EKS)Azure (AKS)
Kubernetes ServiceAmazon EKS (Elastic Kubernetes Service)Azure AKS (Azure Kubernetes Service)
Ease of SetupMedium (needs VPC, IAM, NodeGroup setup)Easier (Azure CLI automates VNet, identity, etc.)
Spring Boot SupportFull via EC2, EKS, Lambda, or BeanstalkFull via AKS, App Service, Azure Spring Apps
Spring Native OptionsAmazon Corretto (OpenJDK), EKSAzure Spring Apps (PaaS) or AKS
Container RegistryAmazon ECRAzure Container Registry (ACR)
Ingress ControllerAWS ALB or NGINX + Route53NGINX, Azure Application Gateway, Azure DNS
Secrets ManagementAWS Secrets Manager / Parameter StoreAzure Key Vault
Monitoring & LogsCloudWatch, X-RayAzure Monitor, Log Analytics
Auto ScalingHPA + Cluster Autoscaler + KarpenterHPA + Cluster Autoscaler
DevOps ToolingCodePipeline, CodeBuild, GitHub ActionsAzure DevOps, GitHub Actions
IAM IntegrationIAM Roles for Service Accounts (IRSA)Azure AD Pod Identity (deprecated) → Workload Identity
PricingPay-per-node, extra charge for EKS control planeControl plane is free, pay only for VMs

🚀 When to Choose AWS EKS

✅ Choose AWS if:

  • You already use AWS ecosystem (S3, RDS, Lambda, etc.)

  • Need tighter IAM control via IRSA

  • Running high-scale, multi-region production workloads

  • Want fine-grained networking (via VPC, Route 53)

⚠️ Considerations:

  • More initial setup effort

  • Control plane ($72/month per EKS cluster unless using Fargate)


🔷 When to Choose Azure AKS

✅ Choose Azure if:

  • You are in a Microsoft stack (Active Directory, Office 365, Azure DevOps)

  • Prefer simplified K8s setup (faster provisioning, built-in monitoring)

  • Using Azure Spring Apps (PaaS for Spring Boot)

  • Need free K8s control plane

⚠️ Considerations:

  • Azure Workload Identity is newer, replacing older AD integration


🔧 Alternative: Azure Spring Apps vs AWS App Runner

FeatureAzure Spring AppsAWS App Runner / Beanstalk
Managed Spring Boot PaaS✅ YesPartial (App Runner supports Java)
Built-in Config Server
Built-in Eureka/Zipkin

🧱 Example Setup: Spring Boot Microservices on EKS/AKS

🔹 Common Tools:

  • Docker for containerizing Spring Boot apps

  • Helm for Kubernetes charts

  • Spring Cloud Config / Eureka / Gateway

  • Secrets in AWS Secrets Manager or Azure Key Vault


📊 Summary Table

FeatureAWS EKSAzure AKS
Integration ComplexityHigherLower
Spring Boot PaaS OptionLimited (App Runner)Azure Spring Apps (native)
IAM IntegrationAdvanced (IRSA)Improving (Workload Identity)
Default MonitoringCloudWatch, X-RayAzure Monitor
GitOps SupportArgoCD, FluxFlux, Azure Arc
Control Plane Cost$72/moFree

🏁 Final Recommendation

ScenarioGo With
Large-scale, enterprise-grade K8sAWS EKS
Faster time to deploy, built-in DevOpsAzure AKS
Spring-native support + PaaSAzure Spring Apps
Cost-sensitive startup/small appsAKS (free control plane)

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