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