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