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