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