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