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