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