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