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