Deploy ASP.NET Core App on Azure

Niotechone Marketing Team
May 3, 2026
10:30 am

Introduction

ASP.NET Core is a Microsoft framework that developers use to build web apps, APIs, and enterprise systems. It’s fast and open-source, and when you use it with Azure, it becomes pretty easy to deploy and scale applications.

Many companies choose an ASP.NET development company when they want help with deployment or proper management. In this blog, we’ll see how to deploy an ASP.NET Core app on Azure step by step.

Why Deploy ASP.NET Core Apps on Azure?

Before deployment steps, it’s good to know why Azure is used for ASP.NET Core apps.

Azure is popular because it scales easily, has CI/CD, security is strong, and it works with Visual Studio. Also runs in many regions, so performance is better.

That’s why companies go with an ASP.NET Core development company or cloud application services provider for this work.

Requirements For Deploy

Visual Studio 2022 or later: use it for build + publish ASP.NET Core app
.NET SDK installed: needed so .NET apps can run on your system
Azure account (free or paid): for hosting the app on Azure
Active ASP.NET Core project: means your app is already ready to deploy
Basic understanding of Azure App Services: just to know how hosting works in Azure

How to Deploy an ASP.NET Core Application on Azure

Step 1: Create an ASP.NET Core Application

I didn’t have any project, so I created one in Visual Studio using “Create New Project.”
Selected “ASP.NET Core Web App,” entered project name and location, and chose .NET 6
Clicked Create, waited a few seconds, and ran the project to check everything was working

Step 2: Publish Application from Visual Studio

Publishing means preparing the app for deployment using Visual Studio
Right-clicked the project, clicked Publish, selected Azure and Azure App Service, then signed in
In real projects, ASP.NET development services teams configure this properly for production

Step 3: Create Azure App Service

Azure App Service is where the application runs
Created a new service, entered App Name, Subscription, Resource Group, and selected runtime and region
Clicked Create, and Azure completed the setup automatically in a few seconds

Step 4: Configure Build and Deployment Settings

Selected runtime version (.NET 6, 7, or 8), hosting plan (Basic, Standard, Premium), and scaling options
This step affects performance, cost, and reliability
Usually handled by a Microsoft .NET development company in real projects

Step 5: Deploy ASP.NET Core Application

Clicked Publish in Visual Studio, selected Azure App Service, and deployed the application
Visual Studio handled build, packaging, and upload, then started the app
Azure provided a live URL after deployment

Step 6: Verify Deployment

Opened Azure Portal, went to App Services, and selected the application
Clicked Browse to check if the ASP.NET Core app was running properly

Step 7: Configure CI/CD Pipeline (Optional but Recommended)

CI/CD helps automate deployment for production applications
Azure supports GitHub Actions, Azure DevOps, and Bitbucket Pipelines
Commonly used by .NET development services teams in enterprise projects

Step 8: Monitoring and Performance Optimization

Used tools like Application Insights, Live Metrics, and error tracking
Helps monitor performance and quickly identify issues
Used by ASP.NET Core development companies to maintain application stability

Step 9: Scaling Your ASP.NET Core App

Azure supports vertical scaling (CPU/RAM) and horizontal scaling (multiple instances)
Used when traffic increases to maintain performance
Common in applications built by a .NET Core development company

Best Practices for Azure Deployment

When working on deployment, I avoided keeping passwords or keys in the code and used environment variables instead, which felt safer and easier to manage. I also made sure HTTPS was enabled because running the app without it didn’t feel secure.

I set up proper logging to track issues when something goes wrong. For sensitive data like API keys, I used Azure Key Vault.

Common Deployment Issues & Fixes

While deploying an ASP.NET Core application on Azure, I ran into some common issues. Nothing major, just small things mostly related to configuration or setup.

500 Internal Server Error: I saw this once; it was a server-side issue. I checked Azure App Service logs and found something wrong in the config.
Application Not Loading: This happened when the .NET runtime version didn’t match. I changed it and restarted the App Service, then it worked.
Database Connection Failure: This usually comes from a wrong connection string. In one case, the firewall was also blocking it, so I fixed that.
Slow Performance: At first, it felt slow; later, I realized caching was not enabled. After that, using Azure CDN, performance improved.

Real-World Use Cases

E-commerce platforms: Used for building online stores that can handle traffic and payments.
Banking systems: Used for secure financial apps where data safety is important.
SaaS applications: Work for apps used by multiple users online.
Enterprise dashboards: Help in showing business data and reports in real time.
CRM systems: Used for managing customers, sales tracking, and communication.

Why Businesses Prefer .NET + Azure Stack

From what I’ve seen, businesses prefer the .NET + Azure stack mainly because it gives good security and a stable, scalable cloud setup. Since both are from Microsoft, they work well together and also connect easily with other Microsoft tools, which makes development and deployment smoother.

It also gives a strong backend that can handle complex business applications without much trouble. Plus, with good community support and scalable cloud infrastructure, it kind of becomes a complete setup.

Conclusion

Deploying an ASP.NET Core application on Azure looks like a long process at first, but honestly, once you do it, it’s not that complicated. You go from creating the project to setting up App Services and even CI/CD, and Azure handles most of the things in the background.

Doesn’t really matter if you’re working alone or with a .NET development company, everything you need is already there.