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