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