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