[root@qbkj-k8s-master01 .kube]# kubectl apply -f https://docs.projectcalico.org/manifests/calico.yaml
error: unable to read URL "https://docs.projectcalico.org/manifests/calico.yaml", server reported 404 Not Found, status code=404
https://docs.projectcalico.org/v3.18/manifests/calico.yaml
kubectl apply -f https://docs.projectcalico.org/v3.23/manifests/calico.yaml