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