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