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