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