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