Custom buildpacks: If your app requires a custom buildpack, you can use the buildpacks attribute to specify it in a number of ways:


    ---
    ...
    buildpacks:
      - buildpack_URL

Multiple buildpacks: If you are using multiple buildpacks, you can add an additional value to your manifest:


    ---
    ...
    buildpacks:
      - buildpack_URL
      - buildpack_URL

Note: You must specify multiple buildpacks in the correct order: the buildpack will use the app start command given by the final buildpack. See the multi-buildpack repository for more information.

The cf buildpacks command lists the buildpacks that you can refer to by name in a manifest or a command line option.

The command line option that overrides this attribute is -b.