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