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