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