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