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