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