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