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