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