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