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