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