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