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