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