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