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