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