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