simple-buildConfig with Dockerbuild Strategy.

simple-bc.yml

---
apiVersion: image.openshift.io/v1
kind: ImageStream
metadata:
  name: test-bc-sample
spec:
  lookupPolicy:
    local: false
---
kind: "BuildConfig"
apiVersion: "build.openshift.io/v1"  #3.11 v1
metadata:
  name: "test-sample-build" 
spec:
  source: 
    type: "Git"
    git:
      uri: "https://github.com/sub-mod/empty-repo"
    dockerfile: |-
      FROM centos:7
       USER 0
       RUN yum install -y centos-release-scl && yum install devtoolset-7 rh-python36 -y 
       RUN source scl_source enable devtoolset-7 rh-python36 && gcc --version && python -V
       USER example
  strategy: 
    type: "Docker"
    dockerStrategy:
      dockerfilePath: Dockerfile
  output: 
    to:
      kind: "ImageStreamTag"
      name: "test-bc-sample:latest"