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