Showing posts with label AKS. Show all posts
Showing posts with label AKS. Show all posts

Tuesday, June 1, 2021

Choosing Compute Services on Azure (AKS, Service Fabric, App Service)

If you are planning to move your services to cloud its important to understand what is the best candidate compute service for you. You don't want to over/under  provision your solution. So what is the best service we should pick, this is on of the question that i am asked often. While there is no single right or wrong answer it depends on what kind of workload and SLAs you have that will dictate what is best compute service for you.

Azure Compute Services offer following key workloads:

  • App Service: A managed service for hosting web apps, mobile app back ends, RESTful APIs, or automated business processes.
  • Azure Kubernetes Service (AKS):  A managed Kubernetes service for running containerized applications.
  • Batch : A managed service for running large-scale parallel and high-performance computing (HPC) applications 
  • Container Instances: The fastest and simplest way to run a container in Azure, without having to provision any virtual machines and without having to adopt a higher-level service. 
  • Functions: A managed FaaS service. 
  • Service Fabric: A distributed systems platform that can run in many environments, including Azure or on premises. 
  • Virtual machines: Deploy and manage VMs inside an Azure virtual network.

It is also important to understand following hosting models:
  • Infrastructure-as-a-Service (IaaS) lets you provision individual VMs along with the associated networking and storage components. Then you deploy whatever software and applications you want onto those VMs. This model is the closest to a traditional on-premises environment, except that Microsoft manages the infrastructure. You still manage the individual VMs. 
  • Platform-as-a-Service (PaaS) provides a managed hosting environment, where you can deploy your application without needing to manage VMs or networking resources. Azure App Service is a PaaS service. 
  • Functions-as-a-Service (FaaS) goes even further in removing the need to worry about the hosting environment. In a FaaS model, you simply deploy your code and the service automatically runs it. Azure Functions is a FaaS service

 Following chart show how best to pick candidate compute service for you:

You also need to look at aspects such as scalability, availability, security and how easily you can perform DevOps.

Ref: Microsoft Docs.