The build Kubernetes API

Codenamed build-v2

An API to build container-images on Kubernetes using popular strategies and tools like source-to-image, buildpack-v3, kaniko, jib and buildah, in an extensible way.

Dependencies

Dependency	Supported versions
Kubernetes	v1.15.*, v1.16.*, v1.17.*
Tekton	v0.11.*

How

The following are the build strategies supported by this operator, out-of-the-box:

• Source-to-Image
• Buildpacks-v3
• Buildah
• Kaniko

Users have the option to define their own BuildStrategy or ClusterBuildStrategy resources and make them available for consumption via the Build resource.

Operator Resources

This operator ships four CRDs :

• The BuildStragegy CRD and the ClusterBuildStrategy CRD is used to register a strategy.
• The Build CRD is used to define a build configuration.
• The BuildRun CRD is used to start the actually image build using a registered strategy.

Read the Docs

Version	Docs	Examples
HEAD	Docs @ HEAD	Examples @ HEAD

Examples

Examples of Build resource using the example strategies shipped with this operator.

• buildah
• buildpacks-v3-heroku
• buildpacks-v3
• kaniko
• source-to-image

Try it!

• Get a Kubernetes cluster and kubectl set up to connect to your cluster.
• Install Tekton by running install-tekton.sh, it installs v0.11.3.
• Install operator-sdk by running install-operator-sdk.sh, it installs v0.17.0.
• Create a namespace called build-examples by running kubectl create namespace build-examples.
• Execute make local to register well-known build strategies including Kaniko and start the operator locally.
• Create a Kaniko build.

apiVersion: build.dev/v1alpha1
kind: Build
metadata:
  name: kaniko-golang-build
  namespace: build-examples
spec:
  source:
    url: https://github.com/sbose78/taxi
    contextDir: .
  strategy:
    name: kaniko
    kind: ClusterBuildStrategy
  dockerfile: Dockerfile
  output:
    image: image-registry.openshift-image-registry.svc:5000/build-examples/taxi-app

• Start a Kaniko buildrun

apiVersion: build.dev/v1alpha1
kind: BuildRun
metadata:
  name: kaniko-golang-buildrun
  namespace: build-examples
spec:
  buildRef:
    name: kaniko-golang-build
  serviceAccount:
    generate: true

Development

• Build, test & run using HACK.md.

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Roadmap

Build Strategies Support

Build Strategy	Alpha	Beta	GA
Source-to-Image	☑
Buildpacks-v3-heroku	☑️
Buildpacks-v3	☑️
Kaniko	☑️
Buildah	☑️

Features

Feature	Alpha	Beta	GA
Private Git Repos	☑️
Private Output Image Registry	☑️
Private Builder Image Registry	☑️
Cluster scope BuildStrategy	☑️
Runtime Base Image	⚪️
Binary builds
Image Caching
ImageStreams support
Entitlements