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