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