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