Azure App Service vs. Azure Functions

Azure App Service is well suited in our case :

• Our website is developed by our tech partner in a full Microsoft Azure cloud based environment.
• We gave them specific access rights and the CI / CD integration helped a lot for updates and improvements deployment.
• Most of the infra issues we had with our website weren't coming from App Service

Incentivized

They're great to embed logic and code in a medium-small, cloud-native application, but they can become quite limiting for complex, enterprise applications.

Incentivized

• Super quick & easy to deploy new apps in visual studio
• Easy scaling to help reduce costs during off-hours
• The powerful Azure ecosystem offers a lot of functionality that ties in well with Azure App Service

Incentivized

• They natively integrate with many triggers from other Azure services, like Blob Storage or Event Grid, which is super handy when creating cloud-native applications on Azure (data wrangling pipelines, business process automation, data ingestion for IoT, ...)
• They natively support many common languages and frameworks, which makes them easily approachable by teams with a diverse background
• They are cheap solutions for low-usage or "seasonal" applications that exhibits a recurring usage/non-usage pattern (batch processing, montly reports, ...)

Incentivized

• Abstraction of computing resources like Heroku does with dynos.
• Azure Portal overall is pretty bloated and that affects managing Azure App Service applications.

Incentivized

• My biggest complaint is that they promote a development model that tightly couples the infrastructure with the app logic. This can be fine in many scenarios, but it can take some time to build the right abstractions if you want to decouple you application from this deployment model. This is true at least using .NET functions.
• In some points, they "leak" their abstraction and - from what I understood - they're actually based on the App Service/Web App "WebJob SDK" infrastructure. This makes sense, since they also share some legacy behavior from their ancestor.
• For larger projects, their mixing of logic, code and infrastructure can become difficult to manage. In these situations, good App Services or brand new Container Apps could be a better fit.

Incentivized

I enjoy the fact that Azure App Service can be managed by the Azure portal and a fully graphical user interface, as well as from two different flavors of command-line interface, i.e. Azure CLI and Azure Powershell. By utilizing the Azure Cloud Shell, we are able to switch between Azure Bash (CLI) and Powershell at any given moment and manage the Azure App Service settings from devices of any form-factor (Web based management).

Incentivized

We had an issue where we deployed too large of a resource and didn't notice until the bill came through. They were very understanding and saw we weren't utilizing the resources so they issued a generous refund in about 4 hours. Very fast, friendly, and understanding support reps from my experience.

Incentivized

In terms of deploying your apps, Azure App Service provides a solid foundation. You may use either the Azure command-line interface or the Web Portal to administer these apps. As a whole, I find You may easily deploy your apps to Azure App Service to be a really difficult platform for novices to get their feet wet. First and foremost, I'd look at Heroku's user interface and the way it abstracts compute units.

Incentivized

This is the most straightforward and easy-to-implement server less solution. App Service is great, but it's designed for websites, and it cannot scale automatically as easily as Azure Functions. Container Apps is a robust and scalable choice, but they need much more planning, development and general work to implement. Container Instances are the same as Container Apps, but they are extremely more limited in termos of capacity. Kubernetes Service si the classic pod container on Azure, but it requires highly skilled professional, and there are not many scenario where it should be used, especially in smaller teams.

Incentivized

• Download time is reduced because of auto scaling feature.
• Insight tool helps in finding issues quickly.
• CI/CD has helped in automation.

Incentivized

• They allowed me to create solutions with low TCO for the customer, which loves the result and the low price, that helped me create solutions for more clients in less time.
• You can save up to 100% of your compute bill, if you stay under a certain tenant conditions.

Incentivized