Tags
Tags provide metadata or descriptive information for Azure resources; metadata is a way to describe data. Think of it like a sticky note, comments in a document, or a tooltip—a sticky label that provides further information on the object it is describing. This is why it is called a tag.
Tags can be created via the Azure portal, PowerShell, the Azure CLI, ARM templates, or the REST API; they can also be managed via Azure Policy.
Up to 15 tags for each resource can be created, and there is no automatic inheritance by resources; if a tag is set at the resource group level, the tag only applies to the resource it is attached to. This may be useful if you want to group things logically by a resource group but have a way to independently label the resource with metadata that is not tied to a resource group or subscription.
Each tag consists of a tag name and tag value, which forms a key-value pair; you can define the name and value as you wish. This can be seen in Figure...
