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