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