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