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