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