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