This repository hosts the files necessary to create the buildpack builder used when
riff builds functions from source with the
riff function create <fn-name>
projectriff/*-function-buildpack RepositoriesRelation to the
In the v3 buildpack ecosystem, a distinction needs to be made between a buildpack and a builder.
The latter is what is actually involved when running
riff function create with the
buildpack approach. A builder is the composition of several buildpacks using groups.
It takes the form of a docker image. In the case of riff, its official location is
The purpose of this repository is to allow the creation of that builder.
The former, a buildpack, is a more fine grained unit of logic that can be composed and
collaborate with other buildpacks. The projectriff/java-function-buildpack
repository hosts one of them, responsible for applying the riff-specific logic on top of
the more general java building logic. As more languages become supported by riff,
other riff function buildpacks will be added to collaborate with other buildpacks (e.g.
python), while this
builder.toml file will enhance its group(s) to reference e.g. the generic
To build the
projectriff/builder builder you’ll need
Creating the Builder
Then, building the builder is as simple as
git clone https://github.com/projectriff/builder cd builder make
Using the Builder Locally
Lastly, to use the builder created above, just refer to the
pack build reference:
cd where-your-function-is pack build --builder projectriff/builder --no-pull -p . your-org/my-function
You should get something similar to
2018/10/17 12:11:51 Selected run image 'packs/run' from stack 'io.buildpacks.stacks.bionic' *** DETECTING: 2018/10/17 10:11:53 Group: Cloud Foundry OpenJDK Buildpack: pass | Cloud Foundry Build System Buildpack: pass | riff Buildpack: pass *** ANALYZING: Reading information from previous image for possible re-use *** BUILDING: -----> Cloud Foundry OpenJDK Buildpack 1.0.0-BUILD-SNAPSHOT -----> OpenJDK JDK 1.8.181: Reusing cached dependency -----> OpenJDK JRE 1.8.181: Contributing to launch Downloading from https://java-buildpack.cloudfoundry.org/openjdk/bionic/x86_64/openjdk-1.8.0_181.tar.gz [...] ---> Running in 68e4eef095c7 ---> f36967212b6c ---> f36967212b6c Successfully built f36967212b6c Successfully tagged your-org/my-function