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