Custom builder for OpenShift

OpenShift doesn't have (at the time of writing) built-in support for Docker CE build time features. Even if you manage to run OpenShift within Docker CE, the docker strategy can't handle certain Dockerfile syntaxes. As a workaround you can deploy a Docker CE pod inside your cluster using the official docker:dind image and then configure your BuildConfig to use this image for a custom builder pod.

Example usage

apiVersion: v1
kind: BuildConfig
metadata:
   ...

spec:
   ...

   strategy:
     customStrategy:
       forcePull: True

       from:
         kind: DockerImage
         name: 5monkeys/openshift-builder:latest

       env:
         - name: BUILD_COMMAND
           value: make image && make push

         - name: DOCKER_HOST
           value: tcp://<docker-ce-service-domain-name>:2375