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