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