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