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