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