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