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