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