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