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