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