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