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