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