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