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