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