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