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