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