Defined Tags

 Types

• Free form tags - basic implementation

• Consist of key and a value

• Syntax: key=value

• Example: environment=production, project=alpha

• Defined Tags - more features

• Contained in Tag Namespace

• Defined schema

• Secured with policy

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Defined Tags

• Defined from the OCI console → Governance → Tags
• A Tag namespace is a container for a set of tag keys definitions.
• Tags must be set up in tenancy before using them.
• The tag consists of a namespace, a key, and a value.
• Tag key definition specifies its key and what types of values are allowed
• Tag definition can be static or a list of values.
• Tag value can be a variable as $(iam.principle.name)
• The tags usage: <Tag Namespace>.<Tag name>=<value>
• Example:
• Namespace: Operations

• Key: Environment

   
• The tag will be Operations.Environment='Development'
• Tags Cannot be deleted but can be retired
• Retired tags cannot be applied to resources
• Retired tags can be reactivated

• Secured with policy Example

• Allow group ComputeUsers to use tag-namespaces in compartment financial_applications where target.tag-namespace.name='Operations'

  Users in the ComputeUsers group can now apply the tag namespace "Operations" to resources in compartment financial_applications.