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