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