Imports github.com/openshift/origin/pkg/deploy/api k8s.io/kubernetes/pkg/api k8s.io/kubernetes/pkg/api/validation k8s.io/kubernetes/pkg/util k8s.io/kubernetes/pkg/util/fielderrors k8s.io/kubernetes/pkg/util/sets k8s.io/kubernetes/pkg/util/validation Standard library imports fmt regexp strconv strings