WEB APPLICATION CREATION IN AZURE

Web application creation in Azure refers to building, deploying, and managing web applications using Azure's cloud infrastructure and services. Azure provides a variety of tools and platforms to help create and host web applications, both simple and complex, while managing scalability, security, and availability. Here's a breakdown of key concepts and steps involved:

1. Azure App Service

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  Azure App Service is the primary platform for creating and hosting web applications, RESTful APIs, and mobile backends. It supports multiple programming languages and frameworks, including .NET, Node.js, PHP, Python, and Java.


• App Service provides built-in infrastructure management, so developers don't need to worry about the underlying hardware or operating system.

2. Setting Up a Web App

• You can create a web app in the Azure portal, using Azure CLI, or through tools like Visual Studio.


• You specify configurations, such as runtime stack (e.g., Node.js, .NET), region, and scaling requirements.


• Azure App Service allows you to configure deployment options, such as deploying directly from code repositories like GitHub, Azure Repos, or local files.

3. Customizing Resources and Scaling

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  App Service Plans let you control the resources (CPU, memory, etc.) allocated to your app, based on the pricing tier. You can scale up (higher resources) or scale out (more instances) as needed.


• Autoscaling can be set up to automatically adjust the app's resources based on demand.

4. Deployment and CI/CD

• Azure supports continuous integration and continuous deployment (CI/CD) using GitHub Actions, Azure DevOps, or other CI/CD tools.


• This means you can automate deployments, enabling changes to your web app to go live immediately after code updates.

5. Additional Features

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  Authentication and Authorization: Azure App Service allows for setting up user authentication with providers like Azure AD, Facebook, Google, and more.


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  Monitoring and Diagnostics: Azure provides tools like Application Insights and Log Analytics for monitoring performance and diagnosing issues.


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  Domain and SSL: You can configure custom domains and SSL/TLS certificates for secure connections.

6. Using Additional Azure Services

• You can connect your web app to other Azure services, like Azure SQL Database, Cosmos DB, or Azure Blob Storage, for databases and storage.


• Use Azure Functions for serverless operations if you need to perform event-driven tasks alongside your web application.

Azure's tools make it straightforward to build, deploy, and manage web applications with a focus on scalability, security, and performance.

3 Core Components to Host Web Application

• A Resource Group.




• An Empty Web Application.




• An Plan- App plan is where an App Service is hosted, more like a computer resource. It is also defines as a set of computer resource for a web app to run.

Getting Started with Azure Web Apps

To start creating a web app on Azure:

1. Go to the
   
   
   

   2.Select + Create Web App

   
   
   
   
   
   
   

   2. Creation of a web code through Chatgpt
   
   A code is needed concerning the kind of web to be created. That is, in a organisation, the programmers are eligible to create a code for any any application to run. But in this regard, web creation through the use of Azure service without the use of a programmer, ChatGPT is use for the code creation.

   
   
   

   Log on to ChatGPT and type the code on any application wished to generate. For instance,
   
   *sample HTML javascript application for women and girls fashion all in one file.
   
   *

   
   
   
   
   

   3. Go back to Azure portal to replicate the code.

   
   
   
   
   
   • In the portal, in the search bar, search for advance tool. Click on it, and click the Go button.
   
   
   
   
   
   
   
   
   
   • Coming into the new environment, click on the button *Site *
     
   
   
   
   
   
   
   
   
   
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     Copy and Save the code.
   
   
   
   
   
   
   
   
   
   
   
   • Click on add slot
     
   
   
   
   
   
   
   
   
   
   • Removal of 10% out the 100% of traffic to test the new App developed. That is, a certain % is needed to test any new app developed before it's finally launched
   
   
   
   
   
   
   
   
   
   
   
   

   MONITORING

   
   
   

   Monitoring in Azure Web Apps involves tracking the performance, health, and availability of your web applications hosted on the Azure platform. It provides insights into how your application is functioning and helps detect and diagnose issues to ensure smooth operation. Azure offers several tools and features for monitoring web apps:

   
   
   

   
   
   
   1. Azure Monitor
   

   
   
   
   
   
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     Overview: Azure Monitor is the primary monitoring solution in Azure. It collects, analyzes, and visualizes telemetry data.
   
   
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     Capabilities:
     
     
     
     
     • Performance monitoring
     
     
     • Log analysis
     
     
     • Alerts and notifications
     
     
     
     
     
     
   
   
   
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     Data Sources:
     
     
     
     
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       Metrics: Real-time data such as CPU usage, memory consumption, and response times.
     
     
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       Logs: Historical data including application events and diagnostic logs.
     
     
     
     
     
     
   
   
   
   
   
   

   
   
   
   2. Application Insights
   

   
   
   
   
   
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     Purpose: A part of Azure Monitor, designed specifically for application performance monitoring (APM).
   
   
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     Key Features:
     
     
     
     
     • Tracks requests, dependencies, exceptions, and custom events.
     
     
     • Provides detailed performance metrics like response time and failure rates.
     
     
     • Offers live metrics stream to monitor real-time performance.
     
     
     • Supports distributed tracing for microservices.
     
     
     
     
     
     
   
   
   
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     Integration:
     
     
     
     
     • Can be integrated with various frameworks (e.g., .NET, Java, Node.js, Python).
     
     
     • Provides an SDK for custom telemetry.
     
     
     
     
     
     
   
   
   
   
   
   

   
   
   
   3. Diagnostics and Logs
   

   
   
   
   
   
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     Application Logs: Capture application-level logs for debugging issues.
   
   
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     Diagnostic Logs: Include detailed system and network-related information.
   
   
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     Streaming Logs: View logs in real time using Azure CLI or Azure portal.
   
   
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     Log Analytics: Query logs for insights using KQL (Kusto Query Language).
   
   
   
   
   

   
   
   
   4. Health Checks
   

   
   
   
   
   
   • Azure App Services support health probes to monitor the application's readiness and availability.
   
   
   • You can configure custom endpoints that Azure pings periodically to check application health.
   
   
   
   
   

   
   
   
   5. Alerts
   

   
   
   
   
   
   • Configure alerts for specific metrics or log conditions.
   
   
   • Supports notifications via email, SMS, or integration with services like PagerDuty and Slack.
   
   
   • Example: Set up an alert for high CPU usage or HTTP 5xx error rates.
   
   
   
   
   

   
   
   
   6. Performance and Availability Monitoring
   

   
   
   
   
   
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     Availability Tests: Simulates user interactions from different geographic regions to test application responsiveness.
   
   
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     Metrics Dashboard: Visualize key performance metrics and trends in the Azure portal.
   
   
   
   
   

   
   
   
   7. Integration with Third-party Tools
   

   
   
   
   
   
   • Azure supports integration with tools like Grafana, Splunk, and Elastic for advanced monitoring and visualization.
   
   
   
   
   

   
   
   
   Why Monitoring Matters:
   

   
   
   
   
   
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     Proactive Issue Detection: Identify problems before users report them.
   
   
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     Performance Optimization: Understand bottlenecks and optimize resource usage.
   
   
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     Business Insights: Monitor user behavior and track key metrics that affect your application’s success.
   
   
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     Compliance and Auditing: Ensure your application meets performance and uptime SLAs.
   
   
   
   
   

   By leveraging these monitoring capabilities, you can ensure your Azure Web App is reliable, performant, and user-friendly.

   
   
   

   The process

   
   
   
   
   
   • In the Azure portal, search and click on Monitoring
     
   
   
   
   
   
   
   

   APPLICATION INSIGHTS

   
   
   
   
   
   • In the same Azure portal, search for Application Insight, it is automatically Enable and Apply.
   
   
   
   
   
   
   
   
   
   • Click Yes to Apply the Monitoring Settings.
   
   
   
   
   

   

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