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