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