1. Global infrastructure #
Geographies, regions and zones.
Regions and zones #
Azure has more than 60 regions grouped into geographies (data residency boundaries). Most regions offer three availability zones. Resources are either zonal (pinned to one zone), zone-redundant, or regional.
2. The resource hierarchy #
From tenant to resource.
Organization #
| Level | Role | Key point |
|---|---|---|
| Microsoft Entra ID tenant | Identity directory | One tenant per organization |
| Management group | Grouping subscriptions | Up to six levels under the root |
| Subscription | Billing, quotas, security boundary | Separate production and non-production |
| Resource group | Common lifecycle | Deleting the group deletes its contents |
ARM: Azure Resource Manager (ARM) is the single entry point: portal, CLI, PowerShell, Bicep and Terraform all go through its API.
3. Tools and pricing #
Working with Azure.
Azure CLI #
az login # ou az login --use-device-code
az account list -o table
az account set --subscription "Production"
az group create -n rg-demo -l francecentral --tags env=demo projet=formation
az resource list -g rg-demo -o table
az group delete -n rg-demo --yes --no-wait # tout supprimer d'un coupPricing #
- Pay as you go; reservations (1 or 3 years) and savings plans for compute.
- Azure Hybrid Benefit: reuse your Windows Server and SQL Server licenses.
- Spot VMs for interruptible workloads.
- Pricing calculator and TCO estimator to prepare a project.
Good practice: Create a budget with alerts in Cost Management from the very first subscription.
