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