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