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