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