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