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