Extensions

+++ title="Specify an image extension in a builder" aliases=[ "/docs/extension-guide/consume-extension/in-builder" ] weight=101 +++

If you are using extensions, here is how to include them in a builder.

You're pretty sharp, and you know what your buildpack users will need.

That's why you're going to add something similar to the following lines directly to builder.toml:

[[order-extensions]]
[[order-extensions.group]]
id = "foo"
version = "0.0.1"

[[extensions]]
id = "foo"
version = "0.0.1"
uri = "/local/path/to/extension/foo" # can be relative or absolute