If you specify a tag for a stack when you create or update the stack by calling an API operation, Resource Orchestration Service (ROS) propagates the tag to resources that support tags within the stack.
Usage notes
- If a tag key defined for a resource in a template is the same as that of the stack
to which the resource belongs, the tag key defined in the template is used for the
resource. For example, the tag
k1:v1is defined for Resource A in the template. If you specifyk1:v2as a tag of the stack to which Resource A belongs when you create the stack by calling the CreateStack operation,k1:v1is used as the tag of Resource A. - If no tags are defined in a template or a tag key defined in the template differs
from that of a stack created from the template, the tag of the stack is propagated
to resources defined in the template. For example, the tag
k1:v1is defined for Resource A in the template. If you specifyk2:v2as a tag of the stack to which Resource A belongs when you create the stack by calling the CreateStack operation,k1:v1,k2:v2is used as the tag of Resource A. - Tags can be propagated only when you create or update stacks by calling the CreateStack or UpdateStack operation. Tags are not propagated when you add the tags to stacks by calling the TagResources operation.