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