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