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