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