github.com/hashicorp/packer@v1.14.3/website/content/partials/commands/except.mdx (about)

     1  - `-except=foo,bar,baz` - Run all the builds and post-processors except those
     2    with the given comma-separated names. In legacy JSON templates, build names default to the
     3    types of their builders (e.g. `docker` or
     4    `amazon-ebs` or `virtualbox-iso`), unless a specific `name` attribute is
     5    specified within the configuration. In HCL2 templates, the "name" is the
     6    source block's "name" label, unless an in-build source definition adds the
     7    "name" configuration option. Any post-processor following
     8    a skipped post-processor will not run. Because post-processors can be nested
     9    in arrays a different post-processor chain can still run. A post-processor
    10    with an empty name will be ignored.