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