| - `-only=foo,bar,baz` - Only run the builds with the given comma-separated | |
| names. In legacy JSON templates, build names default to the | |
| types of their builders (e.g. `docker` or | |
| `amazon-ebs` or `virtualbox-iso`), unless a specific `name` attribute is | |
| specified within the configuration. In HCL2 templates, the "name" is the | |
| source block's "name" label, unless an in-build source definition adds the | |
| "name" configuration option. |