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