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