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