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