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