Downloaded via

ytt \
  -f https://raw.githubusercontent.com/open-policy-agent/gatekeeper/release-3.7/deploy/gatekeeper.yaml \
  -f https://raw.githubusercontent.com/open-policy-agent/gatekeeper/v3.7.0/example/templates/k8srequiredlabels_template.yaml \
  -f https://raw.githubusercontent.com/open-policy-agent/gatekeeper/v3.7.0/example/constraints/all_pod_must_have_gatekeeper_namespaceselector.yaml \
  -f examples/gatekeeper-v3.7.0/exists.yml \
  -f examples/gatekeeper-v3.7.0/overlay.yml > config.yml

• exists.yml is used to wait for CRD created by gatekeeper controller
• overlay.yml is used with ytt to add ordering