GCP Labels and Tags

External

• https://cloud.google.com/resource-manager/docs/creating-managing-labels
• https://blog.doit-intl.com/google-cloud-platform-resource-labeling-best-practices-66fded7ba57

Internal

• GCP Concepts
• AWS Tags
• Azure Tags
• Bucket Labels

Label Constraints

https://cloud.google.com/resource-manager/docs/creating-managing-labels#requirements

• Each resource can have multiple labels, up to a maximum of 64.
• Each label must be a key-value pair.

Key Constraints

• Keys have a minimum length of 1 character and a maximum length of 63 characters, and cannot be empty.
• Keys can contain only lowercase letters, numeric characters, underscores, and dashes. All characters must use UTF-8 encoding, and international characters are allowed.
• The key portion of a label must be unique for a given resource. However, you can use the same key with multiple resources.
• Keys must start with a lowercase letter or international character.

Value Constraints

• Values can be empty, and have a maximum length of 63 characters.
• Values can contain only lowercase letters, numeric characters, underscores, and dashes. All characters must use UTF-8 encoding, and international characters are allowed.