ovs ebpf 도커 레지스트리 yt-dlp x509 klosedstack bpf_trace_printk jaeger-ceph uprobe dns ceph-osd BPF nvidia-smi openvSwitch ubuntu docker localGPT bind9 vagrant kubeadm libvirt-vagrant 쿠버네티스 인증서 libvirt 리눅스설정 nvcc 도커 ovpn ceph vagrant-libvirt net-scripts