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