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