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