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