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