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