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