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