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