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