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