Prepare for AZ-900-Azure compute services

• Virtual Machines (VMs): Azure provides scalable virtual machines to run Windows or Linux. Users can choose from a variety of pre-configured images or bring their own custom images.
• Azure Kubernetes Service (AKS): A managed Kubernetes service for deploying, managing, and scaling containerized applications.
• Azure App Service: A fully managed platform for building, deploying, and scaling web apps.

Virtualization

• Emulation of physical machines
• Different virtual hardware configuration per machine / app
• Different operating systems per machine / app
• Total seperation of environments

1. Files systems
2. services
3. ports
4. middleware
5. configuration

In azure virtualization is done by virtual machine

Virtual Machine

Azure Virtual Machine

• Infrastructure as a service(Iaas)
• Total control over the operating system and the software
• Supports marketplace and custom image
• Best suited for

1. Custom software requring custom system configuration
2. lift-and-shift scenarios

• Can run by applications / scenarios

1. Web apps & Web services
2. Databases
3. Desktop applications
4. Jumpboxes
5. Gateways, etc..

Azure Virtual Machine Scale Sets

Vm Scale Sets

• Infrastructure as a service
• Set of identical virtual machines
• Built in auto-scaling features
• Designed for manual and auto-scaled workloads-like web services, batch processing etc..

Azure Container Instance

ACI

• Use host’s operating system
• Emulate operating system / VM’s emulate hardware
• Lightweight (no O/S)

1. Development effort
2. Maintenance
3. Compute & Storage requirment =

• Respond quicker to demand changes
• Designed for almost any scenario
• The simplestand fastest way to run a container in Azure
• Platform as a service
• Serverless containers
• Designed for

1. Small and simple web apps / services
2. Background jobs
3. Scheduled scripts

Azure Kubernetes Service

Azure Kubernetes Service

• Open-source container orchestration platform
• Platform as a service
• Highly scalable and customizable
• Designed for high-scale container deployments (anything really!)

Azure App Service

App service

• Designed as an enterprise-grade web application service
• Platform as a service
• Supports multiple programming languages and containers

Azure Functions (Serverless)

Azure Functions

• Platform as a service
• Serverless
• Two hosting/pricing model

1. Consumption-based plan
2. Dedicated plan

• Designed for micro / nano — service