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