I want to create and remove a job using Google Cloud Builder. Here's my configuration which builds my Docker image and pushes to GCR.

# cloudbuild.yaml
steps:
- name: 'gcr.io/cloud-builders/docker'
  args: ['build', '-t', 'gcr.io/xyz/abc:latest','-f','Dockerfile.ng-unit','.']
- name: 'gcr.io/cloud-builders/docker'
  args: ['push', 'gcr.io/xyz/abc:latest']

Now I want to create a job , I want to run something like

kubectl create -R -f ./kubernetes

which creates job in kubernetes folder.

I know cloud builder has - name: 'gcr.io/cloud-builders/kubectl' but I can't figure out how to use it. Plus how can I authenticate it to run kubectl commands? How can I use service_key.json