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