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