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