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