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