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