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