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