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