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