Name of the Job in OCP have 63 chars limit and if hostname of the worker node where ovn config job is running is long enough, it may case crash of the ovncontroller controller. Error is then like:
  * [stack@director ~]$ oc logs ovn-operator-controller-manager-857ffcb767-vlczv | tail -50

• /go/pkg/mod/sigs.k8s.io/controller-runtime@v0.14.6/pkg/internal/controller/controller.go:329
• sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem
• /go/pkg/mod/sigs.k8s.io/controller-runtime@v0.14.6/pkg/internal/controller/controller.go:274
• sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func2.2
• /go/pkg/mod/sigs.k8s.io/controller-runtime@v0.14.6/pkg/internal/controller/controller.go:235
• 2023-10-17T14:30:35.914Z INFO controllers.OVNController Reconciling Service
• 2023-10-17T14:30:35.916Z INFO controllers.OVNController Reconciling Service init
• 2023-10-17T14:30:35.916Z INFO controllers.OVNController Reconciled Service init successfully
• 2023-10-17T14:30:35.916Z INFO controllers.OVNController Reconciling Service update
• 2023-10-17T14:30:35.916Z INFO controllers.OVNController Reconciled Service update successfully
• 2023-10-17T14:30:35.916Z INFO controllers.OVNController Reconciling Service upgrade
• 2023-10-17T14:30:35.916Z INFO controllers.OVNController Reconciled Service upgrade successfully
• 2023-10-17T14:30:35.935Z INFO controllers.OVNController DaemonSet: updated {"ObjectType": "*v1.DaemonSet", "ObjectNamespace": "openstack", "ObjectName": "ovn-controller"}
• 2023-10-17T14:30:35.941Z ERROR controllers.OVNController Job CreateOrPatch failed {"job": "ovncontroller-configuration-10-37-140-124.rhev.lab.eng.brq2.redhat.com", "error": "Job.batch \"ovncontroller-configuration-10-37-140-124.rhev.lab.eng.brq2.redhat.com\" is invalid: spec.template.labels: Invalid value: \"ovncontroller-configuration-10-37-140-124.rhev.lab.eng.brq2.redhat.com\": must be no more than 63 characters"}
• github.com/openstack-k8s-operators/lib-common/modules/common/job.(*Job).createJob
• /go/pkg/mod/github.com/openstack-k8s-operators/lib-common/modules/common@v0.3.1-0.20231006072650-7fe7fe16bcd1/job/job.go:82
• github.com/openstack-k8s-operators/lib-common/modules/common/job.(*Job).DoJob
• /go/pkg/mod/github.com/openstack-k8s-operators/lib-common/modules/common@v0.3.1-0.20231006072650-7fe7fe16bcd1/job/job.go:175
• github.com/openstack-k8s-operators/ovn-operator/controllers.(*OVNControllerReconciler).reconcileNormal
• /remote-source/controllers/ovncontroller_controller.go:483
• github.com/openstack-k8s-operators/ovn-operator/controllers.(*OVNControllerReconciler).Reconcile
• /remote-source/controllers/ovncontroller_controller.go:181
• sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Reconcile
• /go/pkg/mod/sigs.k8s.io/controller-runtime@v0.14.6/pkg/internal/controller/controller.go:122
• sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler
• /go/pkg/mod/sigs.k8s.io/controller-runtime@v0.14.6/pkg/internal/controller/controller.go:323
• sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem
• /go/pkg/mod/sigs.k8s.io/controller-runtime@v0.14.6/pkg/internal/controller/controller.go:274
• sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func2.2
• /go/pkg/mod/sigs.k8s.io/controller-runtime@v0.14.6/pkg/internal/controller/controller.go:235
• 2023-10-17T14:30:35.942Z ERROR controllers.OVNController Failed to configure OVN controller {"error": "Job.batch \"ovncontroller-configuration-10-37-140-124.rhev.lab.eng.brq2.redhat.com\" is invalid: spec.template.labels: Invalid value: \"ovncontroller-configuration-10-37-140-124.rhev.lab.eng.brq2.redhat.com\": must be no more than 63 characters"}
• github.com/openstack-k8s-operators/ovn-operator/controllers.(*OVNControllerReconciler).reconcileNormal

This bug was found by kthakre@redhat.com during Adoption Hackathon.