- `tags` (map[string]string) - Tags to apply to the volume. These are retained after the builder completes. This is a [template engine](/docs/templates/engine), see [Build template data](#build-template-data) for more information. - `tag` ([]{name string, value string}) - Same as [`tags`](#tags) but defined as a singular repeatable block containing a `name` and a `value` field. In HCL2 mode the [`dynamic_block`](/docs/configuration/from-1.5/expressions#dynamic-blocks) will allow you to create those programatically.