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