Added by Mike DePaulo about 2 years ago
Set content_origin to the 1st node's 1st address.
If not set by the user.
Limited scope (single-node clusters), but sufficient for minikube/k3s/our Travis CI. fixes: #5138 In pulp-operator, the content_origin should be set to the actual accessible service URL https://pulp.plan.io/issues/5138