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