Deploying .NET Applications To Azure

Kushan Madhusanka
10 min readMay 5, 2024

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Introduction to Deploying .NET Applications to Azure

When it comes to helping software developers find scalable, reliable, and secure hosting solutions, deploying .NET applications to Azure can be a perfect one. Azure, Microsoft’s cloud platform, offers .NET applications designed with a wide range of features and services needed to help them be deployed quickly and managed effectively. This introductory article describes the main benefits of deploying .NET applications on Azure and covers aspects of the deployment process.
Azure presents a wide range of services and tools purposely developed to facilitate the deployment of .NET applications. Moreover, its compatibility with leading development platforms and tools, including Visual Studio and Azure DevOps, further eases the deployment process for developers who can concentrate on developing and shipping their applications.

Let’s see the benefits of getting through Azure.

  1. Scalability: Azure allows you to easily scale your .NET applications up or down based on demand, ensuring optimal performance and cost-efficiency.
  2. Reliability: Azure offers high availability and fault tolerance, with data centers distributed globally to ensure reliability and minimize downtime.
  3. Security: Azure provides robust security features, including built-in threat detection, identity management, encryption, and compliance certifications to protect your applications and data.
  4. Cost-effectiveness: Azure’s pay-as-you-go pricing model allows you to pay only for the resources you use, reducing infrastructure costs and enabling cost-effective deployment of .NET applications.

Prerequisites for Deploying .NET Applications

Before starting the deployment journey, developers should have addressed multiple prerequisites to go through the deployment process smoothly and efficiently. Several important prerequisites developers should have addressed to deploy .NET applications on Azure include:

  1. Azure Subscription: Developers must have an active Azure subscription before apps are deployed to Azure, enabling them to use all of Azure’s services and sources.
  2. Development Environment Setup: Before .NET applications are written and deployed, the development place must prepare support for the .NET applications.
  3. Azure Resource Group: Organizing Azure resources into resource groups is one of the steps that makes the management and deployment of resources more efficient. It is necessary to make developers deliver a distinct resource of .NET deployments, this should ensure proper isolation and provision of resources.
  4. Access to Azure Developer CLI: Do not forget to download the Azure Developer CLI command-line tool to ease your developer experience. Being mindful of this command-line utility will make it possible to realize fast and reliable deployment of your application to Azure. You can download Azure Developer CLI on your local computer according to the installation guide by applying this URL
  5. Network and Security Considerations: Since the cloud implies network design, security policies, and access controls, cloud developers should keep this in mind while deploying .NET applications to Azure. Enforcement of firewall policies, the definition of networking security groups, and applying encryption protocols are just a few procedures a developer is making to bring applications to the field in a secure and safe way.

Choosing the Right Azure Services for Your .NET Application

When it comes to picking out the Azure service options for running your .Net application, consider the specifics that will include your application architecture, scaling needs, performance expectations, and, of course, the costs. Azure is the preferred platform for all .NET applications, which are among the most sought services in this platform, due to their various attributes. Here are some Azure services commonly used for deploying .NET applications:

Azure App Service: Azure App Service ensures developers to concentrate on the app development, instead of on the typical infrastructure management undertakings. The platform also supports a number of programming languages as.NET Core and ASP.NET. Besides, it offers various application services, such as scalability and ease of deployment. The App Service is among the services in Azure, and it features features like automatic scaling, continuous deployment, and integrated monitoring.

Azure Functions: Azure Function provides a serverless code execution environment with event-driven programming in which infrastructure management is eliminated. On Azure, you would deploy serverless, .NET applications for microservices or background processes with Azure Functions. It provides elasticity since demand is proportional to the amount consumed and as a result, in low-traffic or irregularly used applications, it saves costs.

Azure Virtual Machines (VMs): Azure VMs provide flexible and customizable VMs for the execution of .NET applications on the Windows Server or Linux server. You can host .NET applications in Azure VMs if you need full access to underlying infrastructure and you have specific configurations. With VMs, there is such flexibility that you can choose to have your operating system, runtime environment, and resources in your own terms.

Azure Kubernetes Service (AKS): Azure AKS is a managed Kubernetes service that simplifies all the processing of deploying, handling, and resizing containerized applications. Using AKS, you can deploy .NET applications that are packaged as Docker containers to leverage Kubernetes for the orchestration and scaling. This package is perfect if your clients are running containerized applications as microservices or they are revamping their existing .NET apps into cloud-based services.

Azure SQL Database: The Azure SQL Database is a deeply researched, fully managed, relational database service with provisioning of will, security, and scaling needs for .NET applications requiring a relational database backend. Azure SQL Database can handle storing and managing the data for your .NET applications, which gives you a great deal of peace of mind with the information security and accepted standards taken care of.

Here we will talk about Azure App service through this blog post.

Step-by-Step Guide to Deploying .NET Applications on Azure

First of all we have to build our application using Visual Studio or the .NET CLI and develop it. After test your application locally to ensure it runs as expected and configure any necessary settings, such as connection strings or environment variables. Then push it to GitHub or Azure repos.

To start the deployment process go to Azure Portal and sign in using your Azure account credentials.

Then create resource by clicking on the “Create a resource” button in the Azure portal and search for “App Service” in the search bar, then select “App Service” from the results or we can select right away from the dashboard.

After that, you need to Configure the App Service:

  • Choose your subscription, resource group, and region.
  • Enter a unique name for your App Service.
  • Choose the appropriate operating system (Windows/Linux).
  • Select a pricing tier based on your requirements.

Then Click on the “Review + Create” button, review your configuration, and click “Create” to provision the App Service.

As the next step, you need to Configure Deployment:

  • Navigate to Deployment Center in the Azure portal and go to your newly created App Service, then select “Deployment Center” under the “Settings” menu.
  • Choose your preferred deployment source (e.g., GitHub, Azure Repos, Bitbucket, etc.).
  • Follow the prompts to connect your repository and configure deployment settings such as branch and trigger a manual deployment or set up automatic deployments based on your preferences.

Once configured, initiate the deployment process from the Deployment Center. After monitor the deployment progress in the Azure portal to ensure it completes successfully.

After that you have to Configure the Application Settings:

  • Navigate to Configuration in the Azure portal, go to your App Service, then select “Configuration” under the “Settings” menu.
  • Set up any required application settings, connection strings, or environment variables, and Save your configuration settings.

As the final step, you have to test what we have done by accessing your deployed .NET application using the URL provided in the Azure portal. Test the functionality of your application to ensure it runs correctly in the Azure App Service environment. Utilize Azure monitoring tools to monitor the performance, health, and usage of your App Service. Configure alerts and notifications to proactively detect and address any issues.

Best Practices for Managing .NET Applications in Azure

  • Create Azure resource groups, which include App Services, databases, and storage accounts, etc, as a way to logically arrange your resources. It removes the complexities of management, monitoring, and billing with regard to the allocation of these related resources.
  • Set up an automated Continuous Integration and Continuous Deployment (CI/CD) pipeline where the build, test, and release of your .NET applications deployed in Azure without any manual intervention. Make use of Azure DevOps, GitHub Actions, or else other tools available for CI/CD integrated deployments and constant environment consistency.
  • Apply the Azure Monitor in a way that you can monitor the applications’ performance, uptime, and health in real-time. Provide you with custom metrics, alerts, and dashboards to track key performance indicators (KPIs) and handle issues that could be proactively identified.
  • Azure Application Insights integration allows deep insight into application behavior, user activity, and the application usage patterns to be gained by the applications being developed using .NET. Use Application Insights for diagnosis of any application issues and turn to it for troubleshooting errors and performance tuning as well.
  • Utilize the Azure security best practice recommendation to provide a secure cloud environment in which .net applications can run and be resilient to risks and security threats arising. We have tools like securing network access, RBAC implementation, data encryption at rest and in transit, and Security Center Azure for threat detection and if necessary mitigating.
  • Track application use and measures of performance to know when your .NET applications in Azure need to be scaled. For your application, use Azure Autoscale which performs an auto-scaling operation on the number of instances depending on the demand, or configure the manual scaling based on predetermined limits.
  • Develop a failover and recovery plan to keep your .NET applications as well as your data from crashing due to unforeseen breakdowns or connectivity issues. Use the Azure Backup and site recovery Azure storages of the system in order to create alert notifications periodically and replicate data across various Azure regions for high data availability and redundancy.
  • Cite instructions for releasing documents, planting configurations, and best skills in Azure for the .NET application management. Implement and follow standard development, deployment, and operational plans with collaborative work towards teams.

Monitoring and Diagnostics for .NET Applications in Azure

Azure Application Insights: Take it a step further by integrating Azure Application Insights into your .NET application to gain insight into performance, utilization, and availability. Applications Insights offers features such as performance monitoring, request tracking, dependency tracking, and logging to assist detect issues and boost application performance.

Azure Monitor: You may use Azure Monitor to collect and analyze telemetry data from your .NET app, both logs, and traces including. Erect a user-defined dashboard with a setup of warnings to track KPIs and to promptly notice any irregularities or problems during operation.

Diagnostic Logging: Provide readable and detailed logs by configuring diagnostic logging in your .NET application that will facilitate problem-solving and debugging. The benefits of sensor data logging can be maximized with libraries like Serilog or Microsoft.Extensions.Logging to make the logs more informative.

Scaling .NET Applications in Azure

Vertical Scaling: Scale-out your .NET application by allocating more resources on the respective Azure platform (CPU, memory) like using more instances of Azure App Service or Azure Virtual Machines. Extensional scaling is good for applications that demand elevated resource requests.

Horizontal Scaling: Scale .NET application via adding new instances of your application into Azure App Service or multiple Virtual Machines. Provide for the instance quantity scaling using Azure Autoscale doing it per demand or schedule.

Containerization: .NET app could be containerized by Docker and deployed to Azure Kubernetes Service (AKS) for management at scale. AKS auto-scales as containers use CPU and memory dynamically in response to the application demand.

Serverless Computing: Apply Azure Functions to meet the requirements of serverless computing, where resources are automatically provisioned and scaled when an event triggered. Azure functions enable you to call and run .NET code anytime you like in response to an event without the need to maintain the infrastructure.

Securing Your .NET Applications on Azure

When securing your .NET application on Azure, it’s crucial to implement a comprehensive approach to identity and access management (IAM), data encryption, network security, application security, and compliance. This includes leveraging role-based access control (RBAC) for restricting access to Azure resources based on user roles and permissions and utilizing Azure Active Directory (Azure AD) for authentication and authorization. Additionally, ensure sensitive data is encrypted at rest and in transit using Azure Key Vault for managing encryption keys and certificates, and enforce secure communication through HTTPS.

Configure network security groups (NSGs) and virtual network (VNet) peering to control inbound and outbound traffic, while also employing Azure Firewall or Azure DDoS Protection to mitigate network-level attacks. Implement security best practices for .NET development, such as input validation and output encoding, to prevent common vulnerabilities like SQL injection and cross-site scripting (XSS). Finally, ensure compliance with industry standards and regulations by leveraging Azure services with built-in compliance certifications, such as ISO, SOC, and HIPAA, and regularly audit and assess your .NET application for compliance with security policies and regulations.

In summary, deploying .NET applications on Azure offers developers a seamless and efficient process, leveraging Azure’s robust features for scalability, reliability, and security. By addressing prerequisites, choosing the right Azure services, and following best practices, developers can deploy, monitor, and manage their applications effectively in the cloud. With Azure’s comprehensive suite of tools and services, developers can confidently deploy their .NET applications while ensuring optimal performance, security, and cost-effectiveness.

See you in the next blog post. Bye Bye🍻🍸❤️❤️

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Kushan Madhusanka

Undergraduate of University of Moratuwa | Faculty of Information Technology