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