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